Home / 2,746.40-4,117.64-1,284.76

Finding the Fourth Proportional to 2,746.40, 4,117.64 and 1,284.76

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Solution

The fourth proportional to 2,746.40, 4,117.64 and 1,284.76 is: 1,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.40 : 4,117.64 = 1,284.76 : x
  2. Step 2: Convert to fraction form
    2,746.40/4,117.64 = 1,284.76/x
  3. Step 3: Cross multiply
    2,746.40x = 4,117.64 × 1,284.76
  4. Step 4: Simplify right side
    2,746.40x = 5,290,172.08
  5. Step 5: Solve for x
    x = 5,290,172.08/2,746.40
  6. Step 6: Final answer
    x = 1,926.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.