Home / 3,131.04-4,320.76-1,733.76

Finding the Fourth Proportional to 3,131.04, 4,320.76 and 1,733.76

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Solution

The fourth proportional to 3,131.04, 4,320.76 and 1,733.76 is: 2,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.04 : 4,320.76 = 1,733.76 : x
  2. Step 2: Convert to fraction form
    3,131.04/4,320.76 = 1,733.76/x
  3. Step 3: Cross multiply
    3,131.04x = 4,320.76 × 1,733.76
  4. Step 4: Simplify right side
    3,131.04x = 7,491,160.86
  5. Step 5: Solve for x
    x = 7,491,160.86/3,131.04
  6. Step 6: Final answer
    x = 2,392.55

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Half scale
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Double scale
Find fourth proportional to 3,132.04, 4,322.14 and 1,734.76
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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.