Home / 7,245.10-10,862.79-2,860.30

Finding the Fourth Proportional to 7,245.10, 10,862.79 and 2,860.30

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Solution

The fourth proportional to 7,245.10, 10,862.79 and 2,860.30 is: 4,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.10 : 10,862.79 = 2,860.30 : x
  2. Step 2: Convert to fraction form
    7,245.10/10,862.79 = 2,860.30/x
  3. Step 3: Cross multiply
    7,245.10x = 10,862.79 × 2,860.30
  4. Step 4: Simplify right side
    7,245.10x = 31,070,838.24
  5. Step 5: Solve for x
    x = 31,070,838.24/7,245.10
  6. Step 6: Final answer
    x = 4,288.53

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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.