Home / 3,826.40-5,281.32-2,428.88

Finding the Fourth Proportional to 3,826.40, 5,281.32 and 2,428.88

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Solution

The fourth proportional to 3,826.40, 5,281.32 and 2,428.88 is: 3,352.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.40 : 5,281.32 = 2,428.88 : x
  2. Step 2: Convert to fraction form
    3,826.40/5,281.32 = 2,428.88/x
  3. Step 3: Cross multiply
    3,826.40x = 5,281.32 × 2,428.88
  4. Step 4: Simplify right side
    3,826.40x = 12,827,692.52
  5. Step 5: Solve for x
    x = 12,827,692.52/3,826.40
  6. Step 6: Final answer
    x = 3,352.42

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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.