Home / 3,417.25-5,125.88-1,108.75

Finding the Fourth Proportional to 3,417.25, 5,125.88 and 1,108.75

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Solution

The fourth proportional to 3,417.25, 5,125.88 and 1,108.75 is: 1,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.25 : 5,125.88 = 1,108.75 : x
  2. Step 2: Convert to fraction form
    3,417.25/5,125.88 = 1,108.75/x
  3. Step 3: Cross multiply
    3,417.25x = 5,125.88 × 1,108.75
  4. Step 4: Simplify right side
    3,417.25x = 5,683,319.45
  5. Step 5: Solve for x
    x = 5,683,319.45/3,417.25
  6. Step 6: Final answer
    x = 1,663.13

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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.