Home / 1,525.90-2,286.79-1,113.10

Finding the Fourth Proportional to 1,525.90, 2,286.79 and 1,113.10

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Solution

The fourth proportional to 1,525.90, 2,286.79 and 1,113.10 is: 1,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.90 : 2,286.79 = 1,113.10 : x
  2. Step 2: Convert to fraction form
    1,525.90/2,286.79 = 1,113.10/x
  3. Step 3: Cross multiply
    1,525.90x = 2,286.79 × 1,113.10
  4. Step 4: Simplify right side
    1,525.90x = 2,545,425.95
  5. Step 5: Solve for x
    x = 2,545,425.95/1,525.90
  6. Step 6: Final answer
    x = 1,668.15

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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.