Home / 2,159.55-3,234.96-1,325.55

Finding the Fourth Proportional to 2,159.55, 3,234.96 and 1,325.55

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Solution

The fourth proportional to 2,159.55, 3,234.96 and 1,325.55 is: 1,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.55 : 3,234.96 = 1,325.55 : x
  2. Step 2: Convert to fraction form
    2,159.55/3,234.96 = 1,325.55/x
  3. Step 3: Cross multiply
    2,159.55x = 3,234.96 × 1,325.55
  4. Step 4: Simplify right side
    2,159.55x = 4,288,101.23
  5. Step 5: Solve for x
    x = 4,288,101.23/2,159.55
  6. Step 6: Final answer
    x = 1,985.65

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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.