Home / 7,349.04-10,141.70-3,991.91

Finding the Fourth Proportional to 7,349.04, 10,141.70 and 3,991.91

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Solution

The fourth proportional to 7,349.04, 10,141.70 and 3,991.91 is: 5,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,349.04 : 10,141.70 = 3,991.91 : x
  2. Step 2: Convert to fraction form
    7,349.04/10,141.70 = 3,991.91/x
  3. Step 3: Cross multiply
    7,349.04x = 10,141.70 × 3,991.91
  4. Step 4: Simplify right side
    7,349.04x = 40,484,702.94
  5. Step 5: Solve for x
    x = 40,484,702.94/7,349.04
  6. Step 6: Final answer
    x = 5,508.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.