Home / 7,470.81-11,207.70-2,539.13

Finding the Fourth Proportional to 7,470.81, 11,207.70 and 2,539.13

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Solution

The fourth proportional to 7,470.81, 11,207.70 and 2,539.13 is: 3,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.81 : 11,207.70 = 2,539.13 : x
  2. Step 2: Convert to fraction form
    7,470.81/11,207.70 = 2,539.13/x
  3. Step 3: Cross multiply
    7,470.81x = 11,207.70 × 2,539.13
  4. Step 4: Simplify right side
    7,470.81x = 28,457,751.26
  5. Step 5: Solve for x
    x = 28,457,751.26/7,470.81
  6. Step 6: Final answer
    x = 3,809.19

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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.