Home / 4,340.31-6,521.16-2,780.99

Finding the Fourth Proportional to 4,340.31, 6,521.16 and 2,780.99

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Solution

The fourth proportional to 4,340.31, 6,521.16 and 2,780.99 is: 4,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.31 : 6,521.16 = 2,780.99 : x
  2. Step 2: Convert to fraction form
    4,340.31/6,521.16 = 2,780.99/x
  3. Step 3: Cross multiply
    4,340.31x = 6,521.16 × 2,780.99
  4. Step 4: Simplify right side
    4,340.31x = 18,135,248.14
  5. Step 5: Solve for x
    x = 18,135,248.14/4,340.31
  6. Step 6: Final answer
    x = 4,178.33

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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.