Home / 1,590.82-2,195.19-927.58

Finding the Fourth Proportional to 1,590.82, 2,195.19 and 927.58

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Solution

The fourth proportional to 1,590.82, 2,195.19 and 927.58 is: 1,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.82 : 2,195.19 = 927.58 : x
  2. Step 2: Convert to fraction form
    1,590.82/2,195.19 = 927.58/x
  3. Step 3: Cross multiply
    1,590.82x = 2,195.19 × 927.58
  4. Step 4: Simplify right side
    1,590.82x = 2,036,214.34
  5. Step 5: Solve for x
    x = 2,036,214.34/1,590.82
  6. Step 6: Final answer
    x = 1,279.98

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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.