Home / 1,557.80-2,338.02-736.68

Finding the Fourth Proportional to 1,557.80, 2,338.02 and 736.68

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Solution

The fourth proportional to 1,557.80, 2,338.02 and 736.68 is: 1,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.80 : 2,338.02 = 736.68 : x
  2. Step 2: Convert to fraction form
    1,557.80/2,338.02 = 736.68/x
  3. Step 3: Cross multiply
    1,557.80x = 2,338.02 × 736.68
  4. Step 4: Simplify right side
    1,557.80x = 1,722,372.57
  5. Step 5: Solve for x
    x = 1,722,372.57/1,557.80
  6. Step 6: Final answer
    x = 1,105.64

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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.