Home / 3,875.97-5,350.07-2,478.72

Finding the Fourth Proportional to 3,875.97, 5,350.07 and 2,478.72

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Solution

The fourth proportional to 3,875.97, 5,350.07 and 2,478.72 is: 3,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.97 : 5,350.07 = 2,478.72 : x
  2. Step 2: Convert to fraction form
    3,875.97/5,350.07 = 2,478.72/x
  3. Step 3: Cross multiply
    3,875.97x = 5,350.07 × 2,478.72
  4. Step 4: Simplify right side
    3,875.97x = 13,261,325.51
  5. Step 5: Solve for x
    x = 13,261,325.51/3,875.97
  6. Step 6: Final answer
    x = 3,421.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.