Home / 2,775.28-4,154.22-1,472.80

Finding the Fourth Proportional to 2,775.28, 4,154.22 and 1,472.80

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Solution

The fourth proportional to 2,775.28, 4,154.22 and 1,472.80 is: 2,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.28 : 4,154.22 = 1,472.80 : x
  2. Step 2: Convert to fraction form
    2,775.28/4,154.22 = 1,472.80/x
  3. Step 3: Cross multiply
    2,775.28x = 4,154.22 × 1,472.80
  4. Step 4: Simplify right side
    2,775.28x = 6,118,335.22
  5. Step 5: Solve for x
    x = 6,118,335.22/2,775.28
  6. Step 6: Final answer
    x = 2,204.58

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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.