Home / 2,386.12-3,577.88-742.22

Finding the Fourth Proportional to 2,386.12, 3,577.88 and 742.22

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Solution

The fourth proportional to 2,386.12, 3,577.88 and 742.22 is: 1,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.12 : 3,577.88 = 742.22 : x
  2. Step 2: Convert to fraction form
    2,386.12/3,577.88 = 742.22/x
  3. Step 3: Cross multiply
    2,386.12x = 3,577.88 × 742.22
  4. Step 4: Simplify right side
    2,386.12x = 2,655,574.09
  5. Step 5: Solve for x
    x = 2,655,574.09/2,386.12
  6. Step 6: Final answer
    x = 1,112.93

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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.