Home / 1,475.12-2,211.24-1,007.60

Finding the Fourth Proportional to 1,475.12, 2,211.24 and 1,007.60

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Solution

The fourth proportional to 1,475.12, 2,211.24 and 1,007.60 is: 1,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.12 : 2,211.24 = 1,007.60 : x
  2. Step 2: Convert to fraction form
    1,475.12/2,211.24 = 1,007.60/x
  3. Step 3: Cross multiply
    1,475.12x = 2,211.24 × 1,007.60
  4. Step 4: Simplify right side
    1,475.12x = 2,228,045.42
  5. Step 5: Solve for x
    x = 2,228,045.42/1,475.12
  6. Step 6: Final answer
    x = 1,510.42

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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.