Home / 1,440.10-2,158.34-617.41

Finding the Fourth Proportional to 1,440.10, 2,158.34 and 617.41

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Solution

The fourth proportional to 1,440.10, 2,158.34 and 617.41 is: 925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.10 : 2,158.34 = 617.41 : x
  2. Step 2: Convert to fraction form
    1,440.10/2,158.34 = 617.41/x
  3. Step 3: Cross multiply
    1,440.10x = 2,158.34 × 617.41
  4. Step 4: Simplify right side
    1,440.10x = 1,332,577.61
  5. Step 5: Solve for x
    x = 1,332,577.61/1,440.10
  6. Step 6: Final answer
    x = 925.34

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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.