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Finding the Fourth Proportional to 5,194.78, 7,779.43 and 4,695.55

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Solution

The fourth proportional to 5,194.78, 7,779.43 and 4,695.55 is: 7,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,194.78 : 7,779.43 = 4,695.55 : x
  2. Step 2: Convert to fraction form
    5,194.78/7,779.43 = 4,695.55/x
  3. Step 3: Cross multiply
    5,194.78x = 7,779.43 × 4,695.55
  4. Step 4: Simplify right side
    5,194.78x = 36,528,702.54
  5. Step 5: Solve for x
    x = 36,528,702.54/5,194.78
  6. Step 6: Final answer
    x = 7,031.81

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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.