Home / 1,595.50-2,381.81-1,387.87

Finding the Fourth Proportional to 1,595.50, 2,381.81 and 1,387.87

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Solution

The fourth proportional to 1,595.50, 2,381.81 and 1,387.87 is: 2,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.50 : 2,381.81 = 1,387.87 : x
  2. Step 2: Convert to fraction form
    1,595.50/2,381.81 = 1,387.87/x
  3. Step 3: Cross multiply
    1,595.50x = 2,381.81 × 1,387.87
  4. Step 4: Simplify right side
    1,595.50x = 3,305,629.75
  5. Step 5: Solve for x
    x = 3,305,629.75/1,595.50
  6. Step 6: Final answer
    x = 2,071.85

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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.