Home / 2,715.07-4,072.68-740.85

Finding the Fourth Proportional to 2,715.07, 4,072.68 and 740.85

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Solution

The fourth proportional to 2,715.07, 4,072.68 and 740.85 is: 1,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.07 : 4,072.68 = 740.85 : x
  2. Step 2: Convert to fraction form
    2,715.07/4,072.68 = 740.85/x
  3. Step 3: Cross multiply
    2,715.07x = 4,072.68 × 740.85
  4. Step 4: Simplify right side
    2,715.07x = 3,017,229.71
  5. Step 5: Solve for x
    x = 3,017,229.71/2,715.07
  6. Step 6: Final answer
    x = 1,111.29

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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.