Home / 2,807.13-3,871.83-2,384.55

Finding the Fourth Proportional to 2,807.13, 3,871.83 and 2,384.55

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Solution

The fourth proportional to 2,807.13, 3,871.83 and 2,384.55 is: 3,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.13 : 3,871.83 = 2,384.55 : x
  2. Step 2: Convert to fraction form
    2,807.13/3,871.83 = 2,384.55/x
  3. Step 3: Cross multiply
    2,807.13x = 3,871.83 × 2,384.55
  4. Step 4: Simplify right side
    2,807.13x = 9,232,552.87
  5. Step 5: Solve for x
    x = 9,232,552.87/2,807.13
  6. Step 6: Final answer
    x = 3,288.97

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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.