Home / 3,316.80-4,975.12-1,008.28

Finding the Fourth Proportional to 3,316.80, 4,975.12 and 1,008.28

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Solution

The fourth proportional to 3,316.80, 4,975.12 and 1,008.28 is: 1,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.80 : 4,975.12 = 1,008.28 : x
  2. Step 2: Convert to fraction form
    3,316.80/4,975.12 = 1,008.28/x
  3. Step 3: Cross multiply
    3,316.80x = 4,975.12 × 1,008.28
  4. Step 4: Simplify right side
    3,316.80x = 5,016,313.99
  5. Step 5: Solve for x
    x = 5,016,313.99/3,316.80
  6. Step 6: Final answer
    x = 1,512.40

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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.