Home / 3,405.55-5,108.36-1,065.46

Finding the Fourth Proportional to 3,405.55, 5,108.36 and 1,065.46

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Solution

The fourth proportional to 3,405.55, 5,108.36 and 1,065.46 is: 1,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.55 : 5,108.36 = 1,065.46 : x
  2. Step 2: Convert to fraction form
    3,405.55/5,108.36 = 1,065.46/x
  3. Step 3: Cross multiply
    3,405.55x = 5,108.36 × 1,065.46
  4. Step 4: Simplify right side
    3,405.55x = 5,442,753.72
  5. Step 5: Solve for x
    x = 5,442,753.72/3,405.55
  6. Step 6: Final answer
    x = 1,598.20

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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.