Home / 3,465.31-5,197.95-868.25

Finding the Fourth Proportional to 3,465.31, 5,197.95 and 868.25

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Solution

The fourth proportional to 3,465.31, 5,197.95 and 868.25 is: 1,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.31 : 5,197.95 = 868.25 : x
  2. Step 2: Convert to fraction form
    3,465.31/5,197.95 = 868.25/x
  3. Step 3: Cross multiply
    3,465.31x = 5,197.95 × 868.25
  4. Step 4: Simplify right side
    3,465.31x = 4,513,120.09
  5. Step 5: Solve for x
    x = 4,513,120.09/3,465.31
  6. Step 6: Final answer
    x = 1,302.37

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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.