Home / 2,888.28-3,986.16-1,894.36

Finding the Fourth Proportional to 2,888.28, 3,986.16 and 1,894.36

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Solution

The fourth proportional to 2,888.28, 3,986.16 and 1,894.36 is: 2,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.28 : 3,986.16 = 1,894.36 : x
  2. Step 2: Convert to fraction form
    2,888.28/3,986.16 = 1,894.36/x
  3. Step 3: Cross multiply
    2,888.28x = 3,986.16 × 1,894.36
  4. Step 4: Simplify right side
    2,888.28x = 7,551,222.06
  5. Step 5: Solve for x
    x = 7,551,222.06/2,888.28
  6. Step 6: Final answer
    x = 2,614.44

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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.