Home / 2,108.50-3,159.91-1,010.68

Finding the Fourth Proportional to 2,108.50, 3,159.91 and 1,010.68

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Solution

The fourth proportional to 2,108.50, 3,159.91 and 1,010.68 is: 1,514.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.50 : 3,159.91 = 1,010.68 : x
  2. Step 2: Convert to fraction form
    2,108.50/3,159.91 = 1,010.68/x
  3. Step 3: Cross multiply
    2,108.50x = 3,159.91 × 1,010.68
  4. Step 4: Simplify right side
    2,108.50x = 3,193,651.20
  5. Step 5: Solve for x
    x = 3,193,651.20/2,108.50
  6. Step 6: Final answer
    x = 1,514.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.