Home / 4,260.18-6,391.29-1,338.49

Finding the Fourth Proportional to 4,260.18, 6,391.29 and 1,338.49

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Solution

The fourth proportional to 4,260.18, 6,391.29 and 1,338.49 is: 2,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.18 : 6,391.29 = 1,338.49 : x
  2. Step 2: Convert to fraction form
    4,260.18/6,391.29 = 1,338.49/x
  3. Step 3: Cross multiply
    4,260.18x = 6,391.29 × 1,338.49
  4. Step 4: Simplify right side
    4,260.18x = 8,554,639.10
  5. Step 5: Solve for x
    x = 8,554,639.10/4,260.18
  6. Step 6: Final answer
    x = 2,008.05

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1.5x scale

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.