Home / 3,423.77-4,724.53-1,931.85

Finding the Fourth Proportional to 3,423.77, 4,724.53 and 1,931.85

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Solution

The fourth proportional to 3,423.77, 4,724.53 and 1,931.85 is: 2,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.77 : 4,724.53 = 1,931.85 : x
  2. Step 2: Convert to fraction form
    3,423.77/4,724.53 = 1,931.85/x
  3. Step 3: Cross multiply
    3,423.77x = 4,724.53 × 1,931.85
  4. Step 4: Simplify right side
    3,423.77x = 9,127,078.45
  5. Step 5: Solve for x
    x = 9,127,078.45/3,423.77
  6. Step 6: Final answer
    x = 2,665.80

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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.