Home / 4,113.40-6,171.06-1,191.76

Finding the Fourth Proportional to 4,113.40, 6,171.06 and 1,191.76

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Solution

The fourth proportional to 4,113.40, 6,171.06 and 1,191.76 is: 1,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.40 : 6,171.06 = 1,191.76 : x
  2. Step 2: Convert to fraction form
    4,113.40/6,171.06 = 1,191.76/x
  3. Step 3: Cross multiply
    4,113.40x = 6,171.06 × 1,191.76
  4. Step 4: Simplify right side
    4,113.40x = 7,354,422.47
  5. Step 5: Solve for x
    x = 7,354,422.47/4,113.40
  6. Step 6: Final answer
    x = 1,787.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.