Home / 6,079.29-8,389.80-3,721.65

Finding the Fourth Proportional to 6,079.29, 8,389.80 and 3,721.65

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Solution

The fourth proportional to 6,079.29, 8,389.80 and 3,721.65 is: 5,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,079.29 : 8,389.80 = 3,721.65 : x
  2. Step 2: Convert to fraction form
    6,079.29/8,389.80 = 3,721.65/x
  3. Step 3: Cross multiply
    6,079.29x = 8,389.80 × 3,721.65
  4. Step 4: Simplify right side
    6,079.29x = 31,223,899.17
  5. Step 5: Solve for x
    x = 31,223,899.17/6,079.29
  6. Step 6: Final answer
    x = 5,136.11

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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.