Home / 2,890.88-3,981.48-2,497.76

Finding the Fourth Proportional to 2,890.88, 3,981.48 and 2,497.76

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Solution

The fourth proportional to 2,890.88, 3,981.48 and 2,497.76 is: 3,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.88 : 3,981.48 = 2,497.76 : x
  2. Step 2: Convert to fraction form
    2,890.88/3,981.48 = 2,497.76/x
  3. Step 3: Cross multiply
    2,890.88x = 3,981.48 × 2,497.76
  4. Step 4: Simplify right side
    2,890.88x = 9,944,781.48
  5. Step 5: Solve for x
    x = 9,944,781.48/2,890.88
  6. Step 6: Final answer
    x = 3,440.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.