Home / 5,379.28-7,418.23-3,490.17

Finding the Fourth Proportional to 5,379.28, 7,418.23 and 3,490.17

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Solution

The fourth proportional to 5,379.28, 7,418.23 and 3,490.17 is: 4,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.28 : 7,418.23 = 3,490.17 : x
  2. Step 2: Convert to fraction form
    5,379.28/7,418.23 = 3,490.17/x
  3. Step 3: Cross multiply
    5,379.28x = 7,418.23 × 3,490.17
  4. Step 4: Simplify right side
    5,379.28x = 25,890,883.80
  5. Step 5: Solve for x
    x = 25,890,883.80/5,379.28
  6. Step 6: Final answer
    x = 4,813.08

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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.