Home / 3,556.40-5,335.36-1,091.40

Finding the Fourth Proportional to 3,556.40, 5,335.36 and 1,091.40

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Solution

The fourth proportional to 3,556.40, 5,335.36 and 1,091.40 is: 1,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.40 : 5,335.36 = 1,091.40 : x
  2. Step 2: Convert to fraction form
    3,556.40/5,335.36 = 1,091.40/x
  3. Step 3: Cross multiply
    3,556.40x = 5,335.36 × 1,091.40
  4. Step 4: Simplify right side
    3,556.40x = 5,823,011.90
  5. Step 5: Solve for x
    x = 5,823,011.90/3,556.40
  6. Step 6: Final answer
    x = 1,637.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.