Home / 1,495.19-2,242.79-399.72

Finding the Fourth Proportional to 1,495.19, 2,242.79 and 399.72

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Solution

The fourth proportional to 1,495.19, 2,242.79 and 399.72 is: 599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.19 : 2,242.79 = 399.72 : x
  2. Step 2: Convert to fraction form
    1,495.19/2,242.79 = 399.72/x
  3. Step 3: Cross multiply
    1,495.19x = 2,242.79 × 399.72
  4. Step 4: Simplify right side
    1,495.19x = 896,488.02
  5. Step 5: Solve for x
    x = 896,488.02/1,495.19
  6. Step 6: Final answer
    x = 599.58

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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.