Home / 2,386.13-3,292.75-1,391.45

Finding the Fourth Proportional to 2,386.13, 3,292.75 and 1,391.45

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Solution

The fourth proportional to 2,386.13, 3,292.75 and 1,391.45 is: 1,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.13 : 3,292.75 = 1,391.45 : x
  2. Step 2: Convert to fraction form
    2,386.13/3,292.75 = 1,391.45/x
  3. Step 3: Cross multiply
    2,386.13x = 3,292.75 × 1,391.45
  4. Step 4: Simplify right side
    2,386.13x = 4,581,696.99
  5. Step 5: Solve for x
    x = 4,581,696.99/2,386.13
  6. Step 6: Final answer
    x = 1,920.14

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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.