Home / 6,261.19-8,639.85-3,742.79

Finding the Fourth Proportional to 6,261.19, 8,639.85 and 3,742.79

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Solution

The fourth proportional to 6,261.19, 8,639.85 and 3,742.79 is: 5,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.19 : 8,639.85 = 3,742.79 : x
  2. Step 2: Convert to fraction form
    6,261.19/8,639.85 = 3,742.79/x
  3. Step 3: Cross multiply
    6,261.19x = 8,639.85 × 3,742.79
  4. Step 4: Simplify right side
    6,261.19x = 32,337,144.18
  5. Step 5: Solve for x
    x = 32,337,144.18/6,261.19
  6. Step 6: Final answer
    x = 5,164.70

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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.