Home / 7,299.12-10,072.85-4,155.51

Finding the Fourth Proportional to 7,299.12, 10,072.85 and 4,155.51

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Solution

The fourth proportional to 7,299.12, 10,072.85 and 4,155.51 is: 5,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299.12 : 10,072.85 = 4,155.51 : x
  2. Step 2: Convert to fraction form
    7,299.12/10,072.85 = 4,155.51/x
  3. Step 3: Cross multiply
    7,299.12x = 10,072.85 × 4,155.51
  4. Step 4: Simplify right side
    7,299.12x = 41,857,808.13
  5. Step 5: Solve for x
    x = 41,857,808.13/7,299.12
  6. Step 6: Final answer
    x = 5,734.64

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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.