Home / 7,079.06-10,618.59-3,178.91

Finding the Fourth Proportional to 7,079.06, 10,618.59 and 3,178.91

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Solution

The fourth proportional to 7,079.06, 10,618.59 and 3,178.91 is: 4,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.06 : 10,618.59 = 3,178.91 : x
  2. Step 2: Convert to fraction form
    7,079.06/10,618.59 = 3,178.91/x
  3. Step 3: Cross multiply
    7,079.06x = 10,618.59 × 3,178.91
  4. Step 4: Simplify right side
    7,079.06x = 33,755,541.94
  5. Step 5: Solve for x
    x = 33,755,541.94/7,079.06
  6. Step 6: Final answer
    x = 4,768.37

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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.