Home / 4,765.20-7,148.07-1,478.76

Finding the Fourth Proportional to 4,765.20, 7,148.07 and 1,478.76

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Solution

The fourth proportional to 4,765.20, 7,148.07 and 1,478.76 is: 2,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.20 : 7,148.07 = 1,478.76 : x
  2. Step 2: Convert to fraction form
    4,765.20/7,148.07 = 1,478.76/x
  3. Step 3: Cross multiply
    4,765.20x = 7,148.07 × 1,478.76
  4. Step 4: Simplify right side
    4,765.20x = 10,570,279.99
  5. Step 5: Solve for x
    x = 10,570,279.99/4,765.20
  6. Step 6: Final answer
    x = 2,218.22

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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.