Home / 4,715.10-7,072.65-2,123.10

Finding the Fourth Proportional to 4,715.10, 7,072.65 and 2,123.10

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Solution

The fourth proportional to 4,715.10, 7,072.65 and 2,123.10 is: 3,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.10 : 7,072.65 = 2,123.10 : x
  2. Step 2: Convert to fraction form
    4,715.10/7,072.65 = 2,123.10/x
  3. Step 3: Cross multiply
    4,715.10x = 7,072.65 × 2,123.10
  4. Step 4: Simplify right side
    4,715.10x = 15,015,943.22
  5. Step 5: Solve for x
    x = 15,015,943.22/4,715.10
  6. Step 6: Final answer
    x = 3,184.65

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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.