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Finding the Fourth Proportional to 5,424.70, 7,457.11 and 4,890.10

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Solution

The fourth proportional to 5,424.70, 7,457.11 and 4,890.10 is: 6,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.70 : 7,457.11 = 4,890.10 : x
  2. Step 2: Convert to fraction form
    5,424.70/7,457.11 = 4,890.10/x
  3. Step 3: Cross multiply
    5,424.70x = 7,457.11 × 4,890.10
  4. Step 4: Simplify right side
    5,424.70x = 36,466,013.61
  5. Step 5: Solve for x
    x = 36,466,013.61/5,424.70
  6. Step 6: Final answer
    x = 6,722.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.