Home / 7,048.15-9,726.35-3,861.70

Finding the Fourth Proportional to 7,048.15, 9,726.35 and 3,861.70

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Solution

The fourth proportional to 7,048.15, 9,726.35 and 3,861.70 is: 5,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.15 : 9,726.35 = 3,861.70 : x
  2. Step 2: Convert to fraction form
    7,048.15/9,726.35 = 3,861.70/x
  3. Step 3: Cross multiply
    7,048.15x = 9,726.35 × 3,861.70
  4. Step 4: Simplify right side
    7,048.15x = 37,560,202.17
  5. Step 5: Solve for x
    x = 37,560,202.17/7,048.15
  6. Step 6: Final answer
    x = 5,329.09

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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.