Home / 6,386.60-8,812.82-3,553.52

Finding the Fourth Proportional to 6,386.60, 8,812.82 and 3,553.52

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Solution

The fourth proportional to 6,386.60, 8,812.82 and 3,553.52 is: 4,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.60 : 8,812.82 = 3,553.52 : x
  2. Step 2: Convert to fraction form
    6,386.60/8,812.82 = 3,553.52/x
  3. Step 3: Cross multiply
    6,386.60x = 8,812.82 × 3,553.52
  4. Step 4: Simplify right side
    6,386.60x = 31,316,470.29
  5. Step 5: Solve for x
    x = 31,316,470.29/6,386.60
  6. Step 6: Final answer
    x = 4,903.47

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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.