Home / 7,315.11-10,972.16-2,929.47

Finding the Fourth Proportional to 7,315.11, 10,972.16 and 2,929.47

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Solution

The fourth proportional to 7,315.11, 10,972.16 and 2,929.47 is: 4,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.11 : 10,972.16 = 2,929.47 : x
  2. Step 2: Convert to fraction form
    7,315.11/10,972.16 = 2,929.47/x
  3. Step 3: Cross multiply
    7,315.11x = 10,972.16 × 2,929.47
  4. Step 4: Simplify right side
    7,315.11x = 32,142,568.75
  5. Step 5: Solve for x
    x = 32,142,568.75/7,315.11
  6. Step 6: Final answer
    x = 4,394.00

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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.