Home / 3,488.10-5,227.29-2,621.40

Finding the Fourth Proportional to 3,488.10, 5,227.29 and 2,621.40

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Solution

The fourth proportional to 3,488.10, 5,227.29 and 2,621.40 is: 3,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.10 : 5,227.29 = 2,621.40 : x
  2. Step 2: Convert to fraction form
    3,488.10/5,227.29 = 2,621.40/x
  3. Step 3: Cross multiply
    3,488.10x = 5,227.29 × 2,621.40
  4. Step 4: Simplify right side
    3,488.10x = 13,702,818.01
  5. Step 5: Solve for x
    x = 13,702,818.01/3,488.10
  6. Step 6: Final answer
    x = 3,928.45

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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.