Home / 3,061.20-4,588.60-1,672.40

Finding the Fourth Proportional to 3,061.20, 4,588.60 and 1,672.40

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Solution

The fourth proportional to 3,061.20, 4,588.60 and 1,672.40 is: 2,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.20 : 4,588.60 = 1,672.40 : x
  2. Step 2: Convert to fraction form
    3,061.20/4,588.60 = 1,672.40/x
  3. Step 3: Cross multiply
    3,061.20x = 4,588.60 × 1,672.40
  4. Step 4: Simplify right side
    3,061.20x = 7,673,974.64
  5. Step 5: Solve for x
    x = 7,673,974.64/3,061.20
  6. Step 6: Final answer
    x = 2,506.85

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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.