Home / 3,423.02-4,723.68-1,930.89

Finding the Fourth Proportional to 3,423.02, 4,723.68 and 1,930.89

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Solution

The fourth proportional to 3,423.02, 4,723.68 and 1,930.89 is: 2,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.02 : 4,723.68 = 1,930.89 : x
  2. Step 2: Convert to fraction form
    3,423.02/4,723.68 = 1,930.89/x
  3. Step 3: Cross multiply
    3,423.02x = 4,723.68 × 1,930.89
  4. Step 4: Simplify right side
    3,423.02x = 9,120,931.43
  5. Step 5: Solve for x
    x = 9,120,931.43/3,423.02
  6. Step 6: Final answer
    x = 2,664.59

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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.