Home / 1,156.20-1,597.56-1,114.68

Finding the Fourth Proportional to 1,156.20, 1,597.56 and 1,114.68

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Solution

The fourth proportional to 1,156.20, 1,597.56 and 1,114.68 is: 1,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.20 : 1,597.56 = 1,114.68 : x
  2. Step 2: Convert to fraction form
    1,156.20/1,597.56 = 1,114.68/x
  3. Step 3: Cross multiply
    1,156.20x = 1,597.56 × 1,114.68
  4. Step 4: Simplify right side
    1,156.20x = 1,780,768.18
  5. Step 5: Solve for x
    x = 1,780,768.18/1,156.20
  6. Step 6: Final answer
    x = 1,540.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.