Home / 1,155.38-1,725.68-1,045.52

Finding the Fourth Proportional to 1,155.38, 1,725.68 and 1,045.52

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Solution

The fourth proportional to 1,155.38, 1,725.68 and 1,045.52 is: 1,561.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.38 : 1,725.68 = 1,045.52 : x
  2. Step 2: Convert to fraction form
    1,155.38/1,725.68 = 1,045.52/x
  3. Step 3: Cross multiply
    1,155.38x = 1,725.68 × 1,045.52
  4. Step 4: Simplify right side
    1,155.38x = 1,804,226.94
  5. Step 5: Solve for x
    x = 1,804,226.94/1,155.38
  6. Step 6: Final answer
    x = 1,561.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.