Home / 7,429.89-10,253.19-4,072.70

Finding the Fourth Proportional to 7,429.89, 10,253.19 and 4,072.70

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Solution

The fourth proportional to 7,429.89, 10,253.19 and 4,072.70 is: 5,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.89 : 10,253.19 = 4,072.70 : x
  2. Step 2: Convert to fraction form
    7,429.89/10,253.19 = 4,072.70/x
  3. Step 3: Cross multiply
    7,429.89x = 10,253.19 × 4,072.70
  4. Step 4: Simplify right side
    7,429.89x = 41,758,127.24
  5. Step 5: Solve for x
    x = 41,758,127.24/7,429.89
  6. Step 6: Final answer
    x = 5,620.29

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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.