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Finding the Fourth Proportional to 7,011.77, 10,519.65 and 2,854.76

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Solution

The fourth proportional to 7,011.77, 10,519.65 and 2,854.76 is: 4,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.77 : 10,519.65 = 2,854.76 : x
  2. Step 2: Convert to fraction form
    7,011.77/10,519.65 = 2,854.76/x
  3. Step 3: Cross multiply
    7,011.77x = 10,519.65 × 2,854.76
  4. Step 4: Simplify right side
    7,011.77x = 30,031,065.33
  5. Step 5: Solve for x
    x = 30,031,065.33/7,011.77
  6. Step 6: Final answer
    x = 4,282.95

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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.