Home / 1,437.17-2,156.36-572.09

Finding the Fourth Proportional to 1,437.17, 2,156.36 and 572.09

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Solution

The fourth proportional to 1,437.17, 2,156.36 and 572.09 is: 858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.17 : 2,156.36 = 572.09 : x
  2. Step 2: Convert to fraction form
    1,437.17/2,156.36 = 572.09/x
  3. Step 3: Cross multiply
    1,437.17x = 2,156.36 × 572.09
  4. Step 4: Simplify right side
    1,437.17x = 1,233,618.35
  5. Step 5: Solve for x
    x = 1,233,618.35/1,437.17
  6. Step 6: Final answer
    x = 858.37

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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.