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Finding the Fourth Proportional to 5,154.60, 7,113.60 and 2,916.36

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Solution

The fourth proportional to 5,154.60, 7,113.60 and 2,916.36 is: 4,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.60 : 7,113.60 = 2,916.36 : x
  2. Step 2: Convert to fraction form
    5,154.60/7,113.60 = 2,916.36/x
  3. Step 3: Cross multiply
    5,154.60x = 7,113.60 × 2,916.36
  4. Step 4: Simplify right side
    5,154.60x = 20,745,818.50
  5. Step 5: Solve for x
    x = 20,745,818.50/5,154.60
  6. Step 6: Final answer
    x = 4,024.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.