Home / 3,440.40-5,158.86-1,491.72

Finding the Fourth Proportional to 3,440.40, 5,158.86 and 1,491.72

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Solution

The fourth proportional to 3,440.40, 5,158.86 and 1,491.72 is: 2,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.40 : 5,158.86 = 1,491.72 : x
  2. Step 2: Convert to fraction form
    3,440.40/5,158.86 = 1,491.72/x
  3. Step 3: Cross multiply
    3,440.40x = 5,158.86 × 1,491.72
  4. Step 4: Simplify right side
    3,440.40x = 7,695,574.64
  5. Step 5: Solve for x
    x = 7,695,574.64/3,440.40
  6. Step 6: Final answer
    x = 2,236.83

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1.5x scale

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.