Home / 6,143.10-8,474.40-3,901.32

Finding the Fourth Proportional to 6,143.10, 8,474.40 and 3,901.32

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Solution

The fourth proportional to 6,143.10, 8,474.40 and 3,901.32 is: 5,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.10 : 8,474.40 = 3,901.32 : x
  2. Step 2: Convert to fraction form
    6,143.10/8,474.40 = 3,901.32/x
  3. Step 3: Cross multiply
    6,143.10x = 8,474.40 × 3,901.32
  4. Step 4: Simplify right side
    6,143.10x = 33,061,346.21
  5. Step 5: Solve for x
    x = 33,061,346.21/6,143.10
  6. Step 6: Final answer
    x = 5,381.87

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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.