Home / 2,816.37-3,887.67-2,521.11

Finding the Fourth Proportional to 2,816.37, 3,887.67 and 2,521.11

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Solution

The fourth proportional to 2,816.37, 3,887.67 and 2,521.11 is: 3,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.37 : 3,887.67 = 2,521.11 : x
  2. Step 2: Convert to fraction form
    2,816.37/3,887.67 = 2,521.11/x
  3. Step 3: Cross multiply
    2,816.37x = 3,887.67 × 2,521.11
  4. Step 4: Simplify right side
    2,816.37x = 9,801,243.71
  5. Step 5: Solve for x
    x = 9,801,243.71/2,816.37
  6. Step 6: Final answer
    x = 3,480.10

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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.