Home / 7,275.43-10,916.43-3,116.53

Finding the Fourth Proportional to 7,275.43, 10,916.43 and 3,116.53

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Solution

The fourth proportional to 7,275.43, 10,916.43 and 3,116.53 is: 4,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.43 : 10,916.43 = 3,116.53 : x
  2. Step 2: Convert to fraction form
    7,275.43/10,916.43 = 3,116.53/x
  3. Step 3: Cross multiply
    7,275.43x = 10,916.43 × 3,116.53
  4. Step 4: Simplify right side
    7,275.43x = 34,021,381.59
  5. Step 5: Solve for x
    x = 34,021,381.59/7,275.43
  6. Step 6: Final answer
    x = 4,676.20

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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.