Home / 2,080.95-2,869.38-1,418.19

Finding the Fourth Proportional to 2,080.95, 2,869.38 and 1,418.19

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Solution

The fourth proportional to 2,080.95, 2,869.38 and 1,418.19 is: 1,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.95 : 2,869.38 = 1,418.19 : x
  2. Step 2: Convert to fraction form
    2,080.95/2,869.38 = 1,418.19/x
  3. Step 3: Cross multiply
    2,080.95x = 2,869.38 × 1,418.19
  4. Step 4: Simplify right side
    2,080.95x = 4,069,326.02
  5. Step 5: Solve for x
    x = 4,069,326.02/2,080.95
  6. Step 6: Final answer
    x = 1,955.51

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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.