Home / 2,298.20-3,447.30-1,909.40

Finding the Fourth Proportional to 2,298.20, 3,447.30 and 1,909.40

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Solution

The fourth proportional to 2,298.20, 3,447.30 and 1,909.40 is: 2,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298.20 : 3,447.30 = 1,909.40 : x
  2. Step 2: Convert to fraction form
    2,298.20/3,447.30 = 1,909.40/x
  3. Step 3: Cross multiply
    2,298.20x = 3,447.30 × 1,909.40
  4. Step 4: Simplify right side
    2,298.20x = 6,582,274.62
  5. Step 5: Solve for x
    x = 6,582,274.62/2,298.20
  6. Step 6: Final answer
    x = 2,864.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.