Home / 2,816.13-3,888.75-1,755.71

Finding the Fourth Proportional to 2,816.13, 3,888.75 and 1,755.71

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Solution

The fourth proportional to 2,816.13, 3,888.75 and 1,755.71 is: 2,424.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.13 : 3,888.75 = 1,755.71 : x
  2. Step 2: Convert to fraction form
    2,816.13/3,888.75 = 1,755.71/x
  3. Step 3: Cross multiply
    2,816.13x = 3,888.75 × 1,755.71
  4. Step 4: Simplify right side
    2,816.13x = 6,827,497.82
  5. Step 5: Solve for x
    x = 6,827,497.82/2,816.13
  6. Step 6: Final answer
    x = 2,424.43

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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.