Home / 3,095.81-4,643.19-1,121.07

Finding the Fourth Proportional to 3,095.81, 4,643.19 and 1,121.07

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Solution

The fourth proportional to 3,095.81, 4,643.19 and 1,121.07 is: 1,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.81 : 4,643.19 = 1,121.07 : x
  2. Step 2: Convert to fraction form
    3,095.81/4,643.19 = 1,121.07/x
  3. Step 3: Cross multiply
    3,095.81x = 4,643.19 × 1,121.07
  4. Step 4: Simplify right side
    3,095.81x = 5,205,341.01
  5. Step 5: Solve for x
    x = 5,205,341.01/3,095.81
  6. Step 6: Final answer
    x = 1,681.42

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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.