Home / 3,134.60-4,677.71-2,806.55

Finding the Fourth Proportional to 3,134.60, 4,677.71 and 2,806.55

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Solution

The fourth proportional to 3,134.60, 4,677.71 and 2,806.55 is: 4,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.60 : 4,677.71 = 2,806.55 : x
  2. Step 2: Convert to fraction form
    3,134.60/4,677.71 = 2,806.55/x
  3. Step 3: Cross multiply
    3,134.60x = 4,677.71 × 2,806.55
  4. Step 4: Simplify right side
    3,134.60x = 13,128,189.58
  5. Step 5: Solve for x
    x = 13,128,189.58/3,134.60
  6. Step 6: Final answer
    x = 4,188.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.