Home / 7,103.70-10,646.55-2,715.30

Finding the Fourth Proportional to 7,103.70, 10,646.55 and 2,715.30

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Solution

The fourth proportional to 7,103.70, 10,646.55 and 2,715.30 is: 4,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.70 : 10,646.55 = 2,715.30 : x
  2. Step 2: Convert to fraction form
    7,103.70/10,646.55 = 2,715.30/x
  3. Step 3: Cross multiply
    7,103.70x = 10,646.55 × 2,715.30
  4. Step 4: Simplify right side
    7,103.70x = 28,908,577.22
  5. Step 5: Solve for x
    x = 28,908,577.22/7,103.70
  6. Step 6: Final answer
    x = 4,069.51

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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.