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Finding the Fourth Proportional to 5,710.78, 8,566.47 and 1,814.89

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Solution

The fourth proportional to 5,710.78, 8,566.47 and 1,814.89 is: 2,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.78 : 8,566.47 = 1,814.89 : x
  2. Step 2: Convert to fraction form
    5,710.78/8,566.47 = 1,814.89/x
  3. Step 3: Cross multiply
    5,710.78x = 8,566.47 × 1,814.89
  4. Step 4: Simplify right side
    5,710.78x = 15,547,200.74
  5. Step 5: Solve for x
    x = 15,547,200.74/5,710.78
  6. Step 6: Final answer
    x = 2,722.43

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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.