Home / 3,866.48-5,335.65-2,141.72

Finding the Fourth Proportional to 3,866.48, 5,335.65 and 2,141.72

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Solution

The fourth proportional to 3,866.48, 5,335.65 and 2,141.72 is: 2,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.48 : 5,335.65 = 2,141.72 : x
  2. Step 2: Convert to fraction form
    3,866.48/5,335.65 = 2,141.72/x
  3. Step 3: Cross multiply
    3,866.48x = 5,335.65 × 2,141.72
  4. Step 4: Simplify right side
    3,866.48x = 11,427,441.64
  5. Step 5: Solve for x
    x = 11,427,441.64/3,866.48
  6. Step 6: Final answer
    x = 2,955.52

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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.