Home / 1,867.32-2,577.06-1,121.22

Finding the Fourth Proportional to 1,867.32, 2,577.06 and 1,121.22

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Solution

The fourth proportional to 1,867.32, 2,577.06 and 1,121.22 is: 1,547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.32 : 2,577.06 = 1,121.22 : x
  2. Step 2: Convert to fraction form
    1,867.32/2,577.06 = 1,121.22/x
  3. Step 3: Cross multiply
    1,867.32x = 2,577.06 × 1,121.22
  4. Step 4: Simplify right side
    1,867.32x = 2,889,451.21
  5. Step 5: Solve for x
    x = 2,889,451.21/1,867.32
  6. Step 6: Final answer
    x = 1,547.38

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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.