Home / 1,560.62-2,150.69-1,117.75

Finding the Fourth Proportional to 1,560.62, 2,150.69 and 1,117.75

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Solution

The fourth proportional to 1,560.62, 2,150.69 and 1,117.75 is: 1,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.62 : 2,150.69 = 1,117.75 : x
  2. Step 2: Convert to fraction form
    1,560.62/2,150.69 = 1,117.75/x
  3. Step 3: Cross multiply
    1,560.62x = 2,150.69 × 1,117.75
  4. Step 4: Simplify right side
    1,560.62x = 2,403,941.92
  5. Step 5: Solve for x
    x = 2,403,941.92/1,560.62
  6. Step 6: Final answer
    x = 1,540.38

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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.