Home / 3,108.17-4,289.29-1,710.92

Finding the Fourth Proportional to 3,108.17, 4,289.29 and 1,710.92

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Solution

The fourth proportional to 3,108.17, 4,289.29 and 1,710.92 is: 2,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.17 : 4,289.29 = 1,710.92 : x
  2. Step 2: Convert to fraction form
    3,108.17/4,289.29 = 1,710.92/x
  3. Step 3: Cross multiply
    3,108.17x = 4,289.29 × 1,710.92
  4. Step 4: Simplify right side
    3,108.17x = 7,338,632.05
  5. Step 5: Solve for x
    x = 7,338,632.05/3,108.17
  6. Step 6: Final answer
    x = 2,361.08

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Half scale
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Double scale
Find fourth proportional to 3,109.17, 4,290.67 and 1,711.92
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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.