Home / 1,560.37-2,152.92-1,057.15

Finding the Fourth Proportional to 1,560.37, 2,152.92 and 1,057.15

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Solution

The fourth proportional to 1,560.37, 2,152.92 and 1,057.15 is: 1,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.37 : 2,152.92 = 1,057.15 : x
  2. Step 2: Convert to fraction form
    1,560.37/2,152.92 = 1,057.15/x
  3. Step 3: Cross multiply
    1,560.37x = 2,152.92 × 1,057.15
  4. Step 4: Simplify right side
    1,560.37x = 2,275,959.38
  5. Step 5: Solve for x
    x = 2,275,959.38/1,560.37
  6. Step 6: Final answer
    x = 1,458.60

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Double scale
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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.