Home / 3,188.71-4,398.76-2,070.26

Finding the Fourth Proportional to 3,188.71, 4,398.76 and 2,070.26

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Solution

The fourth proportional to 3,188.71, 4,398.76 and 2,070.26 is: 2,855.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.71 : 4,398.76 = 2,070.26 : x
  2. Step 2: Convert to fraction form
    3,188.71/4,398.76 = 2,070.26/x
  3. Step 3: Cross multiply
    3,188.71x = 4,398.76 × 2,070.26
  4. Step 4: Simplify right side
    3,188.71x = 9,106,576.88
  5. Step 5: Solve for x
    x = 9,106,576.88/3,188.71
  6. Step 6: Final answer
    x = 2,855.88

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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.