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Finding the Fourth Proportional to 3,390.07, 5,084.28 and 924.91

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Solution

The fourth proportional to 3,390.07, 5,084.28 and 924.91 is: 1,387.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.07 : 5,084.28 = 924.91 : x
  2. Step 2: Convert to fraction form
    3,390.07/5,084.28 = 924.91/x
  3. Step 3: Cross multiply
    3,390.07x = 5,084.28 × 924.91
  4. Step 4: Simplify right side
    3,390.07x = 4,702,501.41
  5. Step 5: Solve for x
    x = 4,702,501.41/3,390.07
  6. Step 6: Final answer
    x = 1,387.14

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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.