Home / 1,557.27-2,148.48-927.58

Finding the Fourth Proportional to 1,557.27, 2,148.48 and 927.58

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Solution

The fourth proportional to 1,557.27, 2,148.48 and 927.58 is: 1,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.27 : 2,148.48 = 927.58 : x
  2. Step 2: Convert to fraction form
    1,557.27/2,148.48 = 927.58/x
  3. Step 3: Cross multiply
    1,557.27x = 2,148.48 × 927.58
  4. Step 4: Simplify right side
    1,557.27x = 1,992,887.08
  5. Step 5: Solve for x
    x = 1,992,887.08/1,557.27
  6. Step 6: Final answer
    x = 1,279.73

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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.