Home / 4,816.72-6,647.42-2,800.76

Finding the Fourth Proportional to 4,816.72, 6,647.42 and 2,800.76

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Solution

The fourth proportional to 4,816.72, 6,647.42 and 2,800.76 is: 3,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.72 : 6,647.42 = 2,800.76 : x
  2. Step 2: Convert to fraction form
    4,816.72/6,647.42 = 2,800.76/x
  3. Step 3: Cross multiply
    4,816.72x = 6,647.42 × 2,800.76
  4. Step 4: Simplify right side
    4,816.72x = 18,617,851.49
  5. Step 5: Solve for x
    x = 18,617,851.49/4,816.72
  6. Step 6: Final answer
    x = 3,865.26

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Half scale
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Double scale
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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.