Home / 1,556.84-2,148.19-968.18

Finding the Fourth Proportional to 1,556.84, 2,148.19 and 968.18

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Solution

The fourth proportional to 1,556.84, 2,148.19 and 968.18 is: 1,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.84 : 2,148.19 = 968.18 : x
  2. Step 2: Convert to fraction form
    1,556.84/2,148.19 = 968.18/x
  3. Step 3: Cross multiply
    1,556.84x = 2,148.19 × 968.18
  4. Step 4: Simplify right side
    1,556.84x = 2,079,821.43
  5. Step 5: Solve for x
    x = 2,079,821.43/1,556.84
  6. Step 6: Final answer
    x = 1,335.92

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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.