Home / 2,715.13-4,069.85-1,255.24

Finding the Fourth Proportional to 2,715.13, 4,069.85 and 1,255.24

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Solution

The fourth proportional to 2,715.13, 4,069.85 and 1,255.24 is: 1,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.13 : 4,069.85 = 1,255.24 : x
  2. Step 2: Convert to fraction form
    2,715.13/4,069.85 = 1,255.24/x
  3. Step 3: Cross multiply
    2,715.13x = 4,069.85 × 1,255.24
  4. Step 4: Simplify right side
    2,715.13x = 5,108,638.51
  5. Step 5: Solve for x
    x = 5,108,638.51/2,715.13
  6. Step 6: Final answer
    x = 1,881.54

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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.