Home / 1,590.27-2,195.07-927.68

Finding the Fourth Proportional to 1,590.27, 2,195.07 and 927.68

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Solution

The fourth proportional to 1,590.27, 2,195.07 and 927.68 is: 1,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.27 : 2,195.07 = 927.68 : x
  2. Step 2: Convert to fraction form
    1,590.27/2,195.07 = 927.68/x
  3. Step 3: Cross multiply
    1,590.27x = 2,195.07 × 927.68
  4. Step 4: Simplify right side
    1,590.27x = 2,036,311.56
  5. Step 5: Solve for x
    x = 2,036,311.56/1,590.27
  6. Step 6: Final answer
    x = 1,280.48

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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.