Home / 2,975.36-4,463.36-1,126.40

Finding the Fourth Proportional to 2,975.36, 4,463.36 and 1,126.40

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Solution

The fourth proportional to 2,975.36, 4,463.36 and 1,126.40 is: 1,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.36 : 4,463.36 = 1,126.40 : x
  2. Step 2: Convert to fraction form
    2,975.36/4,463.36 = 1,126.40/x
  3. Step 3: Cross multiply
    2,975.36x = 4,463.36 × 1,126.40
  4. Step 4: Simplify right side
    2,975.36x = 5,027,528.70
  5. Step 5: Solve for x
    x = 5,027,528.70/2,975.36
  6. Step 6: Final answer
    x = 1,689.72

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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.