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Finding the Fourth Proportional to 5,339.16, 8,009.82 and 1,876.68

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Solution

The fourth proportional to 5,339.16, 8,009.82 and 1,876.68 is: 2,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.16 : 8,009.82 = 1,876.68 : x
  2. Step 2: Convert to fraction form
    5,339.16/8,009.82 = 1,876.68/x
  3. Step 3: Cross multiply
    5,339.16x = 8,009.82 × 1,876.68
  4. Step 4: Simplify right side
    5,339.16x = 15,031,869.00
  5. Step 5: Solve for x
    x = 15,031,869.00/5,339.16
  6. Step 6: Final answer
    x = 2,815.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.