Home / 2,780.13-4,170.18-832.26

Finding the Fourth Proportional to 2,780.13, 4,170.18 and 832.26

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Solution

The fourth proportional to 2,780.13, 4,170.18 and 832.26 is: 1,248.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.13 : 4,170.18 = 832.26 : x
  2. Step 2: Convert to fraction form
    2,780.13/4,170.18 = 832.26/x
  3. Step 3: Cross multiply
    2,780.13x = 4,170.18 × 832.26
  4. Step 4: Simplify right side
    2,780.13x = 3,470,674.01
  5. Step 5: Solve for x
    x = 3,470,674.01/2,780.13
  6. Step 6: Final answer
    x = 1,248.39

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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.