Home / 1,057.26-1,587.90-1,011.18

Finding the Fourth Proportional to 1,057.26, 1,587.90 and 1,011.18

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Solution

The fourth proportional to 1,057.26, 1,587.90 and 1,011.18 is: 1,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.26 : 1,587.90 = 1,011.18 : x
  2. Step 2: Convert to fraction form
    1,057.26/1,587.90 = 1,011.18/x
  3. Step 3: Cross multiply
    1,057.26x = 1,587.90 × 1,011.18
  4. Step 4: Simplify right side
    1,057.26x = 1,605,652.72
  5. Step 5: Solve for x
    x = 1,605,652.72/1,057.26
  6. Step 6: Final answer
    x = 1,518.69

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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.