Home / 3,132.15-4,320.40-2,014.54

Finding the Fourth Proportional to 3,132.15, 4,320.40 and 2,014.54

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Solution

The fourth proportional to 3,132.15, 4,320.40 and 2,014.54 is: 2,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.15 : 4,320.40 = 2,014.54 : x
  2. Step 2: Convert to fraction form
    3,132.15/4,320.40 = 2,014.54/x
  3. Step 3: Cross multiply
    3,132.15x = 4,320.40 × 2,014.54
  4. Step 4: Simplify right side
    3,132.15x = 8,703,618.62
  5. Step 5: Solve for x
    x = 8,703,618.62/3,132.15
  6. Step 6: Final answer
    x = 2,778.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.