Home / 3,130.88-4,320.96-1,733.76

Finding the Fourth Proportional to 3,130.88, 4,320.96 and 1,733.76

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Solution

The fourth proportional to 3,130.88, 4,320.96 and 1,733.76 is: 2,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.88 : 4,320.96 = 1,733.76 : x
  2. Step 2: Convert to fraction form
    3,130.88/4,320.96 = 1,733.76/x
  3. Step 3: Cross multiply
    3,130.88x = 4,320.96 × 1,733.76
  4. Step 4: Simplify right side
    3,130.88x = 7,491,507.61
  5. Step 5: Solve for x
    x = 7,491,507.61/3,130.88
  6. Step 6: Final answer
    x = 2,392.78

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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.