Home / 2,615.16-3,924.80-1,155.28

Finding the Fourth Proportional to 2,615.16, 3,924.80 and 1,155.28

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Solution

The fourth proportional to 2,615.16, 3,924.80 and 1,155.28 is: 1,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.16 : 3,924.80 = 1,155.28 : x
  2. Step 2: Convert to fraction form
    2,615.16/3,924.80 = 1,155.28/x
  3. Step 3: Cross multiply
    2,615.16x = 3,924.80 × 1,155.28
  4. Step 4: Simplify right side
    2,615.16x = 4,534,242.94
  5. Step 5: Solve for x
    x = 4,534,242.94/2,615.16
  6. Step 6: Final answer
    x = 1,733.83

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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.