Home / 1,560.28-2,336.26-1,287.56

Finding the Fourth Proportional to 1,560.28, 2,336.26 and 1,287.56

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Solution

The fourth proportional to 1,560.28, 2,336.26 and 1,287.56 is: 1,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.28 : 2,336.26 = 1,287.56 : x
  2. Step 2: Convert to fraction form
    1,560.28/2,336.26 = 1,287.56/x
  3. Step 3: Cross multiply
    1,560.28x = 2,336.26 × 1,287.56
  4. Step 4: Simplify right side
    1,560.28x = 3,008,074.93
  5. Step 5: Solve for x
    x = 3,008,074.93/1,560.28
  6. Step 6: Final answer
    x = 1,927.91

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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.