Home / 2,116.13-2,920.25-1,184.63

Finding the Fourth Proportional to 2,116.13, 2,920.25 and 1,184.63

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Solution

The fourth proportional to 2,116.13, 2,920.25 and 1,184.63 is: 1,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.13 : 2,920.25 = 1,184.63 : x
  2. Step 2: Convert to fraction form
    2,116.13/2,920.25 = 1,184.63/x
  3. Step 3: Cross multiply
    2,116.13x = 2,920.25 × 1,184.63
  4. Step 4: Simplify right side
    2,116.13x = 3,459,404.12
  5. Step 5: Solve for x
    x = 3,459,404.12/2,116.13
  6. Step 6: Final answer
    x = 1,634.78

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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.