Home / 3,188.19-4,398.08-2,069.76

Finding the Fourth Proportional to 3,188.19, 4,398.08 and 2,069.76

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Solution

The fourth proportional to 3,188.19, 4,398.08 and 2,069.76 is: 2,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.19 : 4,398.08 = 2,069.76 : x
  2. Step 2: Convert to fraction form
    3,188.19/4,398.08 = 2,069.76/x
  3. Step 3: Cross multiply
    3,188.19x = 4,398.08 × 2,069.76
  4. Step 4: Simplify right side
    3,188.19x = 9,102,959.71
  5. Step 5: Solve for x
    x = 9,102,959.71/3,188.19
  6. Step 6: Final answer
    x = 2,855.21

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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.