Home / 4,125.40-6,180.90-3,506.20

Finding the Fourth Proportional to 4,125.40, 6,180.90 and 3,506.20

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Solution

The fourth proportional to 4,125.40, 6,180.90 and 3,506.20 is: 5,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.40 : 6,180.90 = 3,506.20 : x
  2. Step 2: Convert to fraction form
    4,125.40/6,180.90 = 3,506.20/x
  3. Step 3: Cross multiply
    4,125.40x = 6,180.90 × 3,506.20
  4. Step 4: Simplify right side
    4,125.40x = 21,671,471.58
  5. Step 5: Solve for x
    x = 21,671,471.58/4,125.40
  6. Step 6: Final answer
    x = 5,253.18

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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.