Home / 2,454.00-3,386.51-1,391.99

Finding the Fourth Proportional to 2,454.00, 3,386.51 and 1,391.99

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Solution

The fourth proportional to 2,454.00, 3,386.51 and 1,391.99 is: 1,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.00 : 3,386.51 = 1,391.99 : x
  2. Step 2: Convert to fraction form
    2,454.00/3,386.51 = 1,391.99/x
  3. Step 3: Cross multiply
    2,454.00x = 3,386.51 × 1,391.99
  4. Step 4: Simplify right side
    2,454.00x = 4,713,969.38
  5. Step 5: Solve for x
    x = 4,713,969.38/2,454.00
  6. Step 6: Final answer
    x = 1,920.94

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1.5x scale

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.