Home / 1,495.40-2,242.92-399.87

Finding the Fourth Proportional to 1,495.40, 2,242.92 and 399.87

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Solution

The fourth proportional to 1,495.40, 2,242.92 and 399.87 is: 599.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.40 : 2,242.92 = 399.87 : x
  2. Step 2: Convert to fraction form
    1,495.40/2,242.92 = 399.87/x
  3. Step 3: Cross multiply
    1,495.40x = 2,242.92 × 399.87
  4. Step 4: Simplify right side
    1,495.40x = 896,877.92
  5. Step 5: Solve for x
    x = 896,877.92/1,495.40
  6. Step 6: Final answer
    x = 599.76

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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.