Home / 3,316.36-4,974.78-1,124.20

Finding the Fourth Proportional to 3,316.36, 4,974.78 and 1,124.20

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Solution

The fourth proportional to 3,316.36, 4,974.78 and 1,124.20 is: 1,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.36 : 4,974.78 = 1,124.20 : x
  2. Step 2: Convert to fraction form
    3,316.36/4,974.78 = 1,124.20/x
  3. Step 3: Cross multiply
    3,316.36x = 4,974.78 × 1,124.20
  4. Step 4: Simplify right side
    3,316.36x = 5,592,647.68
  5. Step 5: Solve for x
    x = 5,592,647.68/3,316.36
  6. Step 6: Final answer
    x = 1,686.38

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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.