Home / 2,916.18-4,374.23-724.92

Finding the Fourth Proportional to 2,916.18, 4,374.23 and 724.92

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Solution

The fourth proportional to 2,916.18, 4,374.23 and 724.92 is: 1,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.18 : 4,374.23 = 724.92 : x
  2. Step 2: Convert to fraction form
    2,916.18/4,374.23 = 724.92/x
  3. Step 3: Cross multiply
    2,916.18x = 4,374.23 × 724.92
  4. Step 4: Simplify right side
    2,916.18x = 3,170,985.73
  5. Step 5: Solve for x
    x = 3,170,985.73/2,916.18
  6. Step 6: Final answer
    x = 1,087.38

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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.