Home / 2,916.24-4,374.28-724.94

Finding the Fourth Proportional to 2,916.24, 4,374.28 and 724.94

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Solution

The fourth proportional to 2,916.24, 4,374.28 and 724.94 is: 1,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.24 : 4,374.28 = 724.94 : x
  2. Step 2: Convert to fraction form
    2,916.24/4,374.28 = 724.94/x
  3. Step 3: Cross multiply
    2,916.24x = 4,374.28 × 724.94
  4. Step 4: Simplify right side
    2,916.24x = 3,171,086.92
  5. Step 5: Solve for x
    x = 3,171,086.92/2,916.24
  6. Step 6: Final answer
    x = 1,087.39

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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.