Home / 3,869.29-5,340.70-2,298.30

Finding the Fourth Proportional to 3,869.29, 5,340.70 and 2,298.30

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Solution

The fourth proportional to 3,869.29, 5,340.70 and 2,298.30 is: 3,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.29 : 5,340.70 = 2,298.30 : x
  2. Step 2: Convert to fraction form
    3,869.29/5,340.70 = 2,298.30/x
  3. Step 3: Cross multiply
    3,869.29x = 5,340.70 × 2,298.30
  4. Step 4: Simplify right side
    3,869.29x = 12,274,530.81
  5. Step 5: Solve for x
    x = 12,274,530.81/3,869.29
  6. Step 6: Final answer
    x = 3,172.30

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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.