Home / 6,927.87-10,390.49-1,862.13

Finding the Fourth Proportional to 6,927.87, 10,390.49 and 1,862.13

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Solution

The fourth proportional to 6,927.87, 10,390.49 and 1,862.13 is: 2,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,927.87 : 10,390.49 = 1,862.13 : x
  2. Step 2: Convert to fraction form
    6,927.87/10,390.49 = 1,862.13/x
  3. Step 3: Cross multiply
    6,927.87x = 10,390.49 × 1,862.13
  4. Step 4: Simplify right side
    6,927.87x = 19,348,391.19
  5. Step 5: Solve for x
    x = 19,348,391.19/6,927.87
  6. Step 6: Final answer
    x = 2,792.84

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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.