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Finding the Fourth Proportional to 5,339.82, 8,010.81 and 1,878.06

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Solution

The fourth proportional to 5,339.82, 8,010.81 and 1,878.06 is: 2,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.82 : 8,010.81 = 1,878.06 : x
  2. Step 2: Convert to fraction form
    5,339.82/8,010.81 = 1,878.06/x
  3. Step 3: Cross multiply
    5,339.82x = 8,010.81 × 1,878.06
  4. Step 4: Simplify right side
    5,339.82x = 15,044,781.83
  5. Step 5: Solve for x
    x = 15,044,781.83/5,339.82
  6. Step 6: Final answer
    x = 2,817.47

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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.