Home / 2,222.76-3,335.10-1,247.40

Finding the Fourth Proportional to 2,222.76, 3,335.10 and 1,247.40

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Solution

The fourth proportional to 2,222.76, 3,335.10 and 1,247.40 is: 1,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.76 : 3,335.10 = 1,247.40 : x
  2. Step 2: Convert to fraction form
    2,222.76/3,335.10 = 1,247.40/x
  3. Step 3: Cross multiply
    2,222.76x = 3,335.10 × 1,247.40
  4. Step 4: Simplify right side
    2,222.76x = 4,160,203.74
  5. Step 5: Solve for x
    x = 4,160,203.74/2,222.76
  6. Step 6: Final answer
    x = 1,871.64

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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.