Home / 2,386.65-3,292.81-1,943.79

Finding the Fourth Proportional to 2,386.65, 3,292.81 and 1,943.79

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Solution

The fourth proportional to 2,386.65, 3,292.81 and 1,943.79 is: 2,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.65 : 3,292.81 = 1,943.79 : x
  2. Step 2: Convert to fraction form
    2,386.65/3,292.81 = 1,943.79/x
  3. Step 3: Cross multiply
    2,386.65x = 3,292.81 × 1,943.79
  4. Step 4: Simplify right side
    2,386.65x = 6,400,531.15
  5. Step 5: Solve for x
    x = 6,400,531.15/2,386.65
  6. Step 6: Final answer
    x = 2,681.81

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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.