Home / 2,615.75-3,937.90-2,386.11

Finding the Fourth Proportional to 2,615.75, 3,937.90 and 2,386.11

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Solution

The fourth proportional to 2,615.75, 3,937.90 and 2,386.11 is: 3,592.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.75 : 3,937.90 = 2,386.11 : x
  2. Step 2: Convert to fraction form
    2,615.75/3,937.90 = 2,386.11/x
  3. Step 3: Cross multiply
    2,615.75x = 3,937.90 × 2,386.11
  4. Step 4: Simplify right side
    2,615.75x = 9,396,262.57
  5. Step 5: Solve for x
    x = 9,396,262.57/2,615.75
  6. Step 6: Final answer
    x = 3,592.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.