Home / 2,816.84-3,888.32-2,521.59

Finding the Fourth Proportional to 2,816.84, 3,888.32 and 2,521.59

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Solution

The fourth proportional to 2,816.84, 3,888.32 and 2,521.59 is: 3,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.84 : 3,888.32 = 2,521.59 : x
  2. Step 2: Convert to fraction form
    2,816.84/3,888.32 = 2,521.59/x
  3. Step 3: Cross multiply
    2,816.84x = 3,888.32 × 2,521.59
  4. Step 4: Simplify right side
    2,816.84x = 9,804,755.13
  5. Step 5: Solve for x
    x = 9,804,755.13/2,816.84
  6. Step 6: Final answer
    x = 3,480.77

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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.