Home / 5,079.60-7,009.77-3,089.79

Finding the Fourth Proportional to 5,079.60, 7,009.77 and 3,089.79

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Solution

The fourth proportional to 5,079.60, 7,009.77 and 3,089.79 is: 4,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.60 : 7,009.77 = 3,089.79 : x
  2. Step 2: Convert to fraction form
    5,079.60/7,009.77 = 3,089.79/x
  3. Step 3: Cross multiply
    5,079.60x = 7,009.77 × 3,089.79
  4. Step 4: Simplify right side
    5,079.60x = 21,658,717.25
  5. Step 5: Solve for x
    x = 21,658,717.25/5,079.60
  6. Step 6: Final answer
    x = 4,263.86

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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.