Home / 3,866.02-5,335.87-2,187.43

Finding the Fourth Proportional to 3,866.02, 5,335.87 and 2,187.43

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Solution

The fourth proportional to 3,866.02, 5,335.87 and 2,187.43 is: 3,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.02 : 5,335.87 = 2,187.43 : x
  2. Step 2: Convert to fraction form
    3,866.02/5,335.87 = 2,187.43/x
  3. Step 3: Cross multiply
    3,866.02x = 5,335.87 × 2,187.43
  4. Step 4: Simplify right side
    3,866.02x = 11,671,842.11
  5. Step 5: Solve for x
    x = 11,671,842.11/3,866.02
  6. Step 6: Final answer
    x = 3,019.08

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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.