Home / 1,595.40-2,391.45-1,155.57

Finding the Fourth Proportional to 1,595.40, 2,391.45 and 1,155.57

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Solution

The fourth proportional to 1,595.40, 2,391.45 and 1,155.57 is: 1,732.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.40 : 2,391.45 = 1,155.57 : x
  2. Step 2: Convert to fraction form
    1,595.40/2,391.45 = 1,155.57/x
  3. Step 3: Cross multiply
    1,595.40x = 2,391.45 × 1,155.57
  4. Step 4: Simplify right side
    1,595.40x = 2,763,487.88
  5. Step 5: Solve for x
    x = 2,763,487.88/1,595.40
  6. Step 6: Final answer
    x = 1,732.16

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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.