Home / 5,589.30-7,709.40-3,818.10

Finding the Fourth Proportional to 5,589.30, 7,709.40 and 3,818.10

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Solution

The fourth proportional to 5,589.30, 7,709.40 and 3,818.10 is: 5,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.30 : 7,709.40 = 3,818.10 : x
  2. Step 2: Convert to fraction form
    5,589.30/7,709.40 = 3,818.10/x
  3. Step 3: Cross multiply
    5,589.30x = 7,709.40 × 3,818.10
  4. Step 4: Simplify right side
    5,589.30x = 29,435,260.14
  5. Step 5: Solve for x
    x = 29,435,260.14/5,589.30
  6. Step 6: Final answer
    x = 5,266.36

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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.