Home / 2,337.20-3,215.40-2,272.40

Finding the Fourth Proportional to 2,337.20, 3,215.40 and 2,272.40

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Solution

The fourth proportional to 2,337.20, 3,215.40 and 2,272.40 is: 3,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.20 : 3,215.40 = 2,272.40 : x
  2. Step 2: Convert to fraction form
    2,337.20/3,215.40 = 2,272.40/x
  3. Step 3: Cross multiply
    2,337.20x = 3,215.40 × 2,272.40
  4. Step 4: Simplify right side
    2,337.20x = 7,306,674.96
  5. Step 5: Solve for x
    x = 7,306,674.96/2,337.20
  6. Step 6: Final answer
    x = 3,126.25

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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.