Home / 5,123.32-7,070.70-3,355.90

Finding the Fourth Proportional to 5,123.32, 7,070.70 and 3,355.90

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Solution

The fourth proportional to 5,123.32, 7,070.70 and 3,355.90 is: 4,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.32 : 7,070.70 = 3,355.90 : x
  2. Step 2: Convert to fraction form
    5,123.32/7,070.70 = 3,355.90/x
  3. Step 3: Cross multiply
    5,123.32x = 7,070.70 × 3,355.90
  4. Step 4: Simplify right side
    5,123.32x = 23,728,562.13
  5. Step 5: Solve for x
    x = 23,728,562.13/5,123.32
  6. Step 6: Final answer
    x = 4,631.48

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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.