Home / 3,148.49-4,345.83-2,100.55

Finding the Fourth Proportional to 3,148.49, 4,345.83 and 2,100.55

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Solution

The fourth proportional to 3,148.49, 4,345.83 and 2,100.55 is: 2,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.49 : 4,345.83 = 2,100.55 : x
  2. Step 2: Convert to fraction form
    3,148.49/4,345.83 = 2,100.55/x
  3. Step 3: Cross multiply
    3,148.49x = 4,345.83 × 2,100.55
  4. Step 4: Simplify right side
    3,148.49x = 9,128,600.97
  5. Step 5: Solve for x
    x = 9,128,600.97/3,148.49
  6. Step 6: Final answer
    x = 2,899.36

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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.