Home / 5,238.04-7,220.10-3,974.98

Finding the Fourth Proportional to 5,238.04, 7,220.10 and 3,974.98

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Solution

The fourth proportional to 5,238.04, 7,220.10 and 3,974.98 is: 5,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.04 : 7,220.10 = 3,974.98 : x
  2. Step 2: Convert to fraction form
    5,238.04/7,220.10 = 3,974.98/x
  3. Step 3: Cross multiply
    5,238.04x = 7,220.10 × 3,974.98
  4. Step 4: Simplify right side
    5,238.04x = 28,699,753.10
  5. Step 5: Solve for x
    x = 28,699,753.10/5,238.04
  6. Step 6: Final answer
    x = 5,479.10

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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.