Home / 2,869.16-3,959.46-1,674.20

Finding the Fourth Proportional to 2,869.16, 3,959.46 and 1,674.20

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Solution

The fourth proportional to 2,869.16, 3,959.46 and 1,674.20 is: 2,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.16 : 3,959.46 = 1,674.20 : x
  2. Step 2: Convert to fraction form
    2,869.16/3,959.46 = 1,674.20/x
  3. Step 3: Cross multiply
    2,869.16x = 3,959.46 × 1,674.20
  4. Step 4: Simplify right side
    2,869.16x = 6,628,937.83
  5. Step 5: Solve for x
    x = 6,628,937.83/2,869.16
  6. Step 6: Final answer
    x = 2,310.41

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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.