Home / 1,154.15-1,731.31-374.25

Finding the Fourth Proportional to 1,154.15, 1,731.31 and 374.25

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Solution

The fourth proportional to 1,154.15, 1,731.31 and 374.25 is: 561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.15 : 1,731.31 = 374.25 : x
  2. Step 2: Convert to fraction form
    1,154.15/1,731.31 = 374.25/x
  3. Step 3: Cross multiply
    1,154.15x = 1,731.31 × 374.25
  4. Step 4: Simplify right side
    1,154.15x = 647,948.32
  5. Step 5: Solve for x
    x = 647,948.32/1,154.15
  6. Step 6: Final answer
    x = 561.41

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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.