Home / 2,403.78-3,581.01-2,315.63

Finding the Fourth Proportional to 2,403.78, 3,581.01 and 2,315.63

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Solution

The fourth proportional to 2,403.78, 3,581.01 and 2,315.63 is: 3,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.78 : 3,581.01 = 2,315.63 : x
  2. Step 2: Convert to fraction form
    2,403.78/3,581.01 = 2,315.63/x
  3. Step 3: Cross multiply
    2,403.78x = 3,581.01 × 2,315.63
  4. Step 4: Simplify right side
    2,403.78x = 8,292,276.28
  5. Step 5: Solve for x
    x = 8,292,276.28/2,403.78
  6. Step 6: Final answer
    x = 3,449.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.