Home / 3,318.68-4,975.59-1,126.82

Finding the Fourth Proportional to 3,318.68, 4,975.59 and 1,126.82

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Solution

The fourth proportional to 3,318.68, 4,975.59 and 1,126.82 is: 1,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.68 : 4,975.59 = 1,126.82 : x
  2. Step 2: Convert to fraction form
    3,318.68/4,975.59 = 1,126.82/x
  3. Step 3: Cross multiply
    3,318.68x = 4,975.59 × 1,126.82
  4. Step 4: Simplify right side
    3,318.68x = 5,606,594.32
  5. Step 5: Solve for x
    x = 5,606,594.32/3,318.68
  6. Step 6: Final answer
    x = 1,689.40

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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.