Home / 2,869.49-3,959.73-1,674.70

Finding the Fourth Proportional to 2,869.49, 3,959.73 and 1,674.70

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Solution

The fourth proportional to 2,869.49, 3,959.73 and 1,674.70 is: 2,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.49 : 3,959.73 = 1,674.70 : x
  2. Step 2: Convert to fraction form
    2,869.49/3,959.73 = 1,674.70/x
  3. Step 3: Cross multiply
    2,869.49x = 3,959.73 × 1,674.70
  4. Step 4: Simplify right side
    2,869.49x = 6,631,349.93
  5. Step 5: Solve for x
    x = 6,631,349.93/2,869.49
  6. Step 6: Final answer
    x = 2,310.98

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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.