Home / 3,612.98-5,419.48-1,147.34

Finding the Fourth Proportional to 3,612.98, 5,419.48 and 1,147.34

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Solution

The fourth proportional to 3,612.98, 5,419.48 and 1,147.34 is: 1,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.98 : 5,419.48 = 1,147.34 : x
  2. Step 2: Convert to fraction form
    3,612.98/5,419.48 = 1,147.34/x
  3. Step 3: Cross multiply
    3,612.98x = 5,419.48 × 1,147.34
  4. Step 4: Simplify right side
    3,612.98x = 6,217,986.18
  5. Step 5: Solve for x
    x = 6,217,986.18/3,612.98
  6. Step 6: Final answer
    x = 1,721.01

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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.