Home / 5,166.29-7,128.30-2,927.65

Finding the Fourth Proportional to 5,166.29, 7,128.30 and 2,927.65

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Solution

The fourth proportional to 5,166.29, 7,128.30 and 2,927.65 is: 4,039.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.29 : 7,128.30 = 2,927.65 : x
  2. Step 2: Convert to fraction form
    5,166.29/7,128.30 = 2,927.65/x
  3. Step 3: Cross multiply
    5,166.29x = 7,128.30 × 2,927.65
  4. Step 4: Simplify right side
    5,166.29x = 20,869,167.50
  5. Step 5: Solve for x
    x = 20,869,167.50/5,166.29
  6. Step 6: Final answer
    x = 4,039.49

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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.