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Finding the Fourth Proportional to 5,204.60, 7,798.68 and 1,913.16

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Solution

The fourth proportional to 5,204.60, 7,798.68 and 1,913.16 is: 2,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,204.60 : 7,798.68 = 1,913.16 : x
  2. Step 2: Convert to fraction form
    5,204.60/7,798.68 = 1,913.16/x
  3. Step 3: Cross multiply
    5,204.60x = 7,798.68 × 1,913.16
  4. Step 4: Simplify right side
    5,204.60x = 14,920,122.63
  5. Step 5: Solve for x
    x = 14,920,122.63/5,204.60
  6. Step 6: Final answer
    x = 2,866.72

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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.