Home / 5,225.95-7,838.88-1,330.35

Finding the Fourth Proportional to 5,225.95, 7,838.88 and 1,330.35

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Solution

The fourth proportional to 5,225.95, 7,838.88 and 1,330.35 is: 1,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.95 : 7,838.88 = 1,330.35 : x
  2. Step 2: Convert to fraction form
    5,225.95/7,838.88 = 1,330.35/x
  3. Step 3: Cross multiply
    5,225.95x = 7,838.88 × 1,330.35
  4. Step 4: Simplify right side
    5,225.95x = 10,428,454.01
  5. Step 5: Solve for x
    x = 10,428,454.01/5,225.95
  6. Step 6: Final answer
    x = 1,995.51

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Half scale
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Double scale
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Similar ratio
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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.