Home / 1,437.80-2,156.40-500.70

Finding the Fourth Proportional to 1,437.80, 2,156.40 and 500.70

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Solution

The fourth proportional to 1,437.80, 2,156.40 and 500.70 is: 750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.80 : 2,156.40 = 500.70 : x
  2. Step 2: Convert to fraction form
    1,437.80/2,156.40 = 500.70/x
  3. Step 3: Cross multiply
    1,437.80x = 2,156.40 × 500.70
  4. Step 4: Simplify right side
    1,437.80x = 1,079,709.48
  5. Step 5: Solve for x
    x = 1,079,709.48/1,437.80
  6. Step 6: Final answer
    x = 750.95

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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.