Home / 5,636.51-7,779.20-3,279.95

Finding the Fourth Proportional to 5,636.51, 7,779.20 and 3,279.95

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Solution

The fourth proportional to 5,636.51, 7,779.20 and 3,279.95 is: 4,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.51 : 7,779.20 = 3,279.95 : x
  2. Step 2: Convert to fraction form
    5,636.51/7,779.20 = 3,279.95/x
  3. Step 3: Cross multiply
    5,636.51x = 7,779.20 × 3,279.95
  4. Step 4: Simplify right side
    5,636.51x = 25,515,331.74
  5. Step 5: Solve for x
    x = 25,515,331.74/5,636.51
  6. Step 6: Final answer
    x = 4,526.80

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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.