Home / 3,112.30-4,662.19-1,547.57

Finding the Fourth Proportional to 3,112.30, 4,662.19 and 1,547.57

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Solution

The fourth proportional to 3,112.30, 4,662.19 and 1,547.57 is: 2,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.30 : 4,662.19 = 1,547.57 : x
  2. Step 2: Convert to fraction form
    3,112.30/4,662.19 = 1,547.57/x
  3. Step 3: Cross multiply
    3,112.30x = 4,662.19 × 1,547.57
  4. Step 4: Simplify right side
    3,112.30x = 7,215,042.07
  5. Step 5: Solve for x
    x = 7,215,042.07/3,112.30
  6. Step 6: Final answer
    x = 2,318.24

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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.