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Finding the Fourth Proportional to 5,853.16, 8,780.40 and 1,956.76

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Solution

The fourth proportional to 5,853.16, 8,780.40 and 1,956.76 is: 2,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.16 : 8,780.40 = 1,956.76 : x
  2. Step 2: Convert to fraction form
    5,853.16/8,780.40 = 1,956.76/x
  3. Step 3: Cross multiply
    5,853.16x = 8,780.40 × 1,956.76
  4. Step 4: Simplify right side
    5,853.16x = 17,181,135.50
  5. Step 5: Solve for x
    x = 17,181,135.50/5,853.16
  6. Step 6: Final answer
    x = 2,935.36

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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.