Home / 3,071.52-4,242.78-2,677.86

Finding the Fourth Proportional to 3,071.52, 4,242.78 and 2,677.86

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Solution

The fourth proportional to 3,071.52, 4,242.78 and 2,677.86 is: 3,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.52 : 4,242.78 = 2,677.86 : x
  2. Step 2: Convert to fraction form
    3,071.52/4,242.78 = 2,677.86/x
  3. Step 3: Cross multiply
    3,071.52x = 4,242.78 × 2,677.86
  4. Step 4: Simplify right side
    3,071.52x = 11,361,570.85
  5. Step 5: Solve for x
    x = 11,361,570.85/3,071.52
  6. Step 6: Final answer
    x = 3,699.01

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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.