Home / 7,031.28-10,538.64-2,868.69

Finding the Fourth Proportional to 7,031.28, 10,538.64 and 2,868.69

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Solution

The fourth proportional to 7,031.28, 10,538.64 and 2,868.69 is: 4,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.28 : 10,538.64 = 2,868.69 : x
  2. Step 2: Convert to fraction form
    7,031.28/10,538.64 = 2,868.69/x
  3. Step 3: Cross multiply
    7,031.28x = 10,538.64 × 2,868.69
  4. Step 4: Simplify right side
    7,031.28x = 30,232,091.18
  5. Step 5: Solve for x
    x = 30,232,091.18/7,031.28
  6. Step 6: Final answer
    x = 4,299.66

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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.