Home / 1,590.68-2,194.79-1,538.24

Finding the Fourth Proportional to 1,590.68, 2,194.79 and 1,538.24

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Solution

The fourth proportional to 1,590.68, 2,194.79 and 1,538.24 is: 2,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.68 : 2,194.79 = 1,538.24 : x
  2. Step 2: Convert to fraction form
    1,590.68/2,194.79 = 1,538.24/x
  3. Step 3: Cross multiply
    1,590.68x = 2,194.79 × 1,538.24
  4. Step 4: Simplify right side
    1,590.68x = 3,376,113.77
  5. Step 5: Solve for x
    x = 3,376,113.77/1,590.68
  6. Step 6: Final answer
    x = 2,122.43

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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.