Home / 1,968.28-2,707.50-1,888.36

Finding the Fourth Proportional to 1,968.28, 2,707.50 and 1,888.36

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Solution

The fourth proportional to 1,968.28, 2,707.50 and 1,888.36 is: 2,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.28 : 2,707.50 = 1,888.36 : x
  2. Step 2: Convert to fraction form
    1,968.28/2,707.50 = 1,888.36/x
  3. Step 3: Cross multiply
    1,968.28x = 2,707.50 × 1,888.36
  4. Step 4: Simplify right side
    1,968.28x = 5,112,734.70
  5. Step 5: Solve for x
    x = 5,112,734.70/1,968.28
  6. Step 6: Final answer
    x = 2,597.56

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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.