Home / 2,116.45-2,920.70-1,184.95

Finding the Fourth Proportional to 2,116.45, 2,920.70 and 1,184.95

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Solution

The fourth proportional to 2,116.45, 2,920.70 and 1,184.95 is: 1,635.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.45 : 2,920.70 = 1,184.95 : x
  2. Step 2: Convert to fraction form
    2,116.45/2,920.70 = 1,184.95/x
  3. Step 3: Cross multiply
    2,116.45x = 2,920.70 × 1,184.95
  4. Step 4: Simplify right side
    2,116.45x = 3,460,883.47
  5. Step 5: Solve for x
    x = 3,460,883.47/2,116.45
  6. Step 6: Final answer
    x = 1,635.23

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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.