Home / 1,561.87-2,343.62-1,132.57

Finding the Fourth Proportional to 1,561.87, 2,343.62 and 1,132.57

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Solution

The fourth proportional to 1,561.87, 2,343.62 and 1,132.57 is: 1,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.87 : 2,343.62 = 1,132.57 : x
  2. Step 2: Convert to fraction form
    1,561.87/2,343.62 = 1,132.57/x
  3. Step 3: Cross multiply
    1,561.87x = 2,343.62 × 1,132.57
  4. Step 4: Simplify right side
    1,561.87x = 2,654,313.70
  5. Step 5: Solve for x
    x = 2,654,313.70/1,561.87
  6. Step 6: Final answer
    x = 1,699.45

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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.