Home / 1,437.09-2,155.60-571.38

Finding the Fourth Proportional to 1,437.09, 2,155.60 and 571.38

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Solution

The fourth proportional to 1,437.09, 2,155.60 and 571.38 is: 857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.09 : 2,155.60 = 571.38 : x
  2. Step 2: Convert to fraction form
    1,437.09/2,155.60 = 571.38/x
  3. Step 3: Cross multiply
    1,437.09x = 2,155.60 × 571.38
  4. Step 4: Simplify right side
    1,437.09x = 1,231,666.73
  5. Step 5: Solve for x
    x = 1,231,666.73/1,437.09
  6. Step 6: Final answer
    x = 857.06

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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.