Home / 2,390.57-3,587.51-929.73

Finding the Fourth Proportional to 2,390.57, 3,587.51 and 929.73

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Solution

The fourth proportional to 2,390.57, 3,587.51 and 929.73 is: 1,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.57 : 3,587.51 = 929.73 : x
  2. Step 2: Convert to fraction form
    2,390.57/3,587.51 = 929.73/x
  3. Step 3: Cross multiply
    2,390.57x = 3,587.51 × 929.73
  4. Step 4: Simplify right side
    2,390.57x = 3,335,415.67
  5. Step 5: Solve for x
    x = 3,335,415.67/2,390.57
  6. Step 6: Final answer
    x = 1,395.24

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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.