Home / 1,924.76-2,655.18-1,225.40

Finding the Fourth Proportional to 1,924.76, 2,655.18 and 1,225.40

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Solution

The fourth proportional to 1,924.76, 2,655.18 and 1,225.40 is: 1,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.76 : 2,655.18 = 1,225.40 : x
  2. Step 2: Convert to fraction form
    1,924.76/2,655.18 = 1,225.40/x
  3. Step 3: Cross multiply
    1,924.76x = 2,655.18 × 1,225.40
  4. Step 4: Simplify right side
    1,924.76x = 3,253,657.57
  5. Step 5: Solve for x
    x = 3,253,657.57/1,924.76
  6. Step 6: Final answer
    x = 1,690.42

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,925.76, 2,656.56 and 1,226.40
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.