Home / 3,572.10-5,359-1,490.95

Finding the Fourth Proportional to 3,572.10, 5,359 and 1,490.95

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Solution

The fourth proportional to 3,572.10, 5,359 and 1,490.95 is: 2,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.10 : 5,359 = 1,490.95 : x
  2. Step 2: Convert to fraction form
    3,572.10/5,359 = 1,490.95/x
  3. Step 3: Cross multiply
    3,572.10x = 5,359 × 1,490.95
  4. Step 4: Simplify right side
    3,572.10x = 7,990,001.05
  5. Step 5: Solve for x
    x = 7,990,001.05/3,572.10
  6. Step 6: Final answer
    x = 2,236.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.