Home / 2,615.04-3,920.64-2,449.92

Finding the Fourth Proportional to 2,615.04, 3,920.64 and 2,449.92

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Solution

The fourth proportional to 2,615.04, 3,920.64 and 2,449.92 is: 3,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.04 : 3,920.64 = 2,449.92 : x
  2. Step 2: Convert to fraction form
    2,615.04/3,920.64 = 2,449.92/x
  3. Step 3: Cross multiply
    2,615.04x = 3,920.64 × 2,449.92
  4. Step 4: Simplify right side
    2,615.04x = 9,605,254.35
  5. Step 5: Solve for x
    x = 9,605,254.35/2,615.04
  6. Step 6: Final answer
    x = 3,673.08

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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.