Home / 3,423.20-4,724.01-1,851.30

Finding the Fourth Proportional to 3,423.20, 4,724.01 and 1,851.30

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Solution

The fourth proportional to 3,423.20, 4,724.01 and 1,851.30 is: 2,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.20 : 4,724.01 = 1,851.30 : x
  2. Step 2: Convert to fraction form
    3,423.20/4,724.01 = 1,851.30/x
  3. Step 3: Cross multiply
    3,423.20x = 4,724.01 × 1,851.30
  4. Step 4: Simplify right side
    3,423.20x = 8,745,559.71
  5. Step 5: Solve for x
    x = 8,745,559.71/3,423.20
  6. Step 6: Final answer
    x = 2,554.79

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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.