Home / 1,475.20-2,211.16-608.76

Finding the Fourth Proportional to 1,475.20, 2,211.16 and 608.76

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Solution

The fourth proportional to 1,475.20, 2,211.16 and 608.76 is: 912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.20 : 2,211.16 = 608.76 : x
  2. Step 2: Convert to fraction form
    1,475.20/2,211.16 = 608.76/x
  3. Step 3: Cross multiply
    1,475.20x = 2,211.16 × 608.76
  4. Step 4: Simplify right side
    1,475.20x = 1,346,065.76
  5. Step 5: Solve for x
    x = 1,346,065.76/1,475.20
  6. Step 6: Final answer
    x = 912.46

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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.