Home / 2,892.48-3,991.65-1,566.21

Finding the Fourth Proportional to 2,892.48, 3,991.65 and 1,566.21

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Solution

The fourth proportional to 2,892.48, 3,991.65 and 1,566.21 is: 2,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.48 : 3,991.65 = 1,566.21 : x
  2. Step 2: Convert to fraction form
    2,892.48/3,991.65 = 1,566.21/x
  3. Step 3: Cross multiply
    2,892.48x = 3,991.65 × 1,566.21
  4. Step 4: Simplify right side
    2,892.48x = 6,251,780.05
  5. Step 5: Solve for x
    x = 6,251,780.05/2,892.48
  6. Step 6: Final answer
    x = 2,161.39

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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.