Home / 3,132.40-4,320.75-2,014.79

Finding the Fourth Proportional to 3,132.40, 4,320.75 and 2,014.79

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Solution

The fourth proportional to 3,132.40, 4,320.75 and 2,014.79 is: 2,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.40 : 4,320.75 = 2,014.79 : x
  2. Step 2: Convert to fraction form
    3,132.40/4,320.75 = 2,014.79/x
  3. Step 3: Cross multiply
    3,132.40x = 4,320.75 × 2,014.79
  4. Step 4: Simplify right side
    3,132.40x = 8,705,403.89
  5. Step 5: Solve for x
    x = 8,705,403.89/3,132.40
  6. Step 6: Final answer
    x = 2,779.15

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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.