Home / 2,886.48-3,983.19-1,691.70

Finding the Fourth Proportional to 2,886.48, 3,983.19 and 1,691.70

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Solution

The fourth proportional to 2,886.48, 3,983.19 and 1,691.70 is: 2,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.48 : 3,983.19 = 1,691.70 : x
  2. Step 2: Convert to fraction form
    2,886.48/3,983.19 = 1,691.70/x
  3. Step 3: Cross multiply
    2,886.48x = 3,983.19 × 1,691.70
  4. Step 4: Simplify right side
    2,886.48x = 6,738,362.52
  5. Step 5: Solve for x
    x = 6,738,362.52/2,886.48
  6. Step 6: Final answer
    x = 2,334.46

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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.