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Finding the Fourth Proportional to 4,983.06, 6,875.10 and 2,886.78

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Solution

The fourth proportional to 4,983.06, 6,875.10 and 2,886.78 is: 3,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.06 : 6,875.10 = 2,886.78 : x
  2. Step 2: Convert to fraction form
    4,983.06/6,875.10 = 2,886.78/x
  3. Step 3: Cross multiply
    4,983.06x = 6,875.10 × 2,886.78
  4. Step 4: Simplify right side
    4,983.06x = 19,846,901.18
  5. Step 5: Solve for x
    x = 19,846,901.18/4,983.06
  6. Step 6: Final answer
    x = 3,982.87

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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.