Home / 3,605.12-4,973.74-2,112.49

Finding the Fourth Proportional to 3,605.12, 4,973.74 and 2,112.49

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Solution

The fourth proportional to 3,605.12, 4,973.74 and 2,112.49 is: 2,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.12 : 4,973.74 = 2,112.49 : x
  2. Step 2: Convert to fraction form
    3,605.12/4,973.74 = 2,112.49/x
  3. Step 3: Cross multiply
    3,605.12x = 4,973.74 × 2,112.49
  4. Step 4: Simplify right side
    3,605.12x = 10,506,979.49
  5. Step 5: Solve for x
    x = 10,506,979.49/3,605.12
  6. Step 6: Final answer
    x = 2,914.46

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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.