Home / 2,355.36-3,534.06-1,122.78

Finding the Fourth Proportional to 2,355.36, 3,534.06 and 1,122.78

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Solution

The fourth proportional to 2,355.36, 3,534.06 and 1,122.78 is: 1,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.36 : 3,534.06 = 1,122.78 : x
  2. Step 2: Convert to fraction form
    2,355.36/3,534.06 = 1,122.78/x
  3. Step 3: Cross multiply
    2,355.36x = 3,534.06 × 1,122.78
  4. Step 4: Simplify right side
    2,355.36x = 3,967,971.89
  5. Step 5: Solve for x
    x = 3,967,971.89/2,355.36
  6. Step 6: Final answer
    x = 1,684.66

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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.