Home / 3,862.68-5,765.75-3,318.36

Finding the Fourth Proportional to 3,862.68, 5,765.75 and 3,318.36

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Solution

The fourth proportional to 3,862.68, 5,765.75 and 3,318.36 is: 4,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.68 : 5,765.75 = 3,318.36 : x
  2. Step 2: Convert to fraction form
    3,862.68/5,765.75 = 3,318.36/x
  3. Step 3: Cross multiply
    3,862.68x = 5,765.75 × 3,318.36
  4. Step 4: Simplify right side
    3,862.68x = 19,132,830.02
  5. Step 5: Solve for x
    x = 19,132,830.02/3,862.68
  6. Step 6: Final answer
    x = 4,953.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.