Home / 4,132.80-6,156-4,118.40

Finding the Fourth Proportional to 4,132.80, 6,156 and 4,118.40

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Solution

The fourth proportional to 4,132.80, 6,156 and 4,118.40 is: 6,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,132.80 : 6,156 = 4,118.40 : x
  2. Step 2: Convert to fraction form
    4,132.80/6,156 = 4,118.40/x
  3. Step 3: Cross multiply
    4,132.80x = 6,156 × 4,118.40
  4. Step 4: Simplify right side
    4,132.80x = 25,352,870.40
  5. Step 5: Solve for x
    x = 25,352,870.40/4,132.80
  6. Step 6: Final answer
    x = 6,134.55

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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.