Home / 5,440.20-8,158.82-1,490.51

Finding the Fourth Proportional to 5,440.20, 8,158.82 and 1,490.51

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Solution

The fourth proportional to 5,440.20, 8,158.82 and 1,490.51 is: 2,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.20 : 8,158.82 = 1,490.51 : x
  2. Step 2: Convert to fraction form
    5,440.20/8,158.82 = 1,490.51/x
  3. Step 3: Cross multiply
    5,440.20x = 8,158.82 × 1,490.51
  4. Step 4: Simplify right side
    5,440.20x = 12,160,754.55
  5. Step 5: Solve for x
    x = 12,160,754.55/5,440.20
  6. Step 6: Final answer
    x = 2,235.35

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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.