Home / 2,148.57-2,973.44-2,112.12

Finding the Fourth Proportional to 2,148.57, 2,973.44 and 2,112.12

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Solution

The fourth proportional to 2,148.57, 2,973.44 and 2,112.12 is: 2,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.57 : 2,973.44 = 2,112.12 : x
  2. Step 2: Convert to fraction form
    2,148.57/2,973.44 = 2,112.12/x
  3. Step 3: Cross multiply
    2,148.57x = 2,973.44 × 2,112.12
  4. Step 4: Simplify right side
    2,148.57x = 6,280,262.09
  5. Step 5: Solve for x
    x = 6,280,262.09/2,148.57
  6. Step 6: Final answer
    x = 2,923.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.