Home / 4,815.28-7,220.76-1,527.76

Finding the Fourth Proportional to 4,815.28, 7,220.76 and 1,527.76

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Solution

The fourth proportional to 4,815.28, 7,220.76 and 1,527.76 is: 2,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.28 : 7,220.76 = 1,527.76 : x
  2. Step 2: Convert to fraction form
    4,815.28/7,220.76 = 1,527.76/x
  3. Step 3: Cross multiply
    4,815.28x = 7,220.76 × 1,527.76
  4. Step 4: Simplify right side
    4,815.28x = 11,031,588.30
  5. Step 5: Solve for x
    x = 11,031,588.30/4,815.28
  6. Step 6: Final answer
    x = 2,290.95

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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.