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Finding the Fourth Proportional to 5,878.90, 8,111.10 and 4,391.74

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Solution

The fourth proportional to 5,878.90, 8,111.10 and 4,391.74 is: 6,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.90 : 8,111.10 = 4,391.74 : x
  2. Step 2: Convert to fraction form
    5,878.90/8,111.10 = 4,391.74/x
  3. Step 3: Cross multiply
    5,878.90x = 8,111.10 × 4,391.74
  4. Step 4: Simplify right side
    5,878.90x = 35,621,842.31
  5. Step 5: Solve for x
    x = 35,621,842.31/5,878.90
  6. Step 6: Final answer
    x = 6,059.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.