Home / 5,637.09-7,780.41-3,279.54

Finding the Fourth Proportional to 5,637.09, 7,780.41 and 3,279.54

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Solution

The fourth proportional to 5,637.09, 7,780.41 and 3,279.54 is: 4,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.09 : 7,780.41 = 3,279.54 : x
  2. Step 2: Convert to fraction form
    5,637.09/7,780.41 = 3,279.54/x
  3. Step 3: Cross multiply
    5,637.09x = 7,780.41 × 3,279.54
  4. Step 4: Simplify right side
    5,637.09x = 25,516,165.81
  5. Step 5: Solve for x
    x = 25,516,165.81/5,637.09
  6. Step 6: Final answer
    x = 4,526.48

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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.