Home / 4,721.49-7,083.97-1,948.40

Finding the Fourth Proportional to 4,721.49, 7,083.97 and 1,948.40

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Solution

The fourth proportional to 4,721.49, 7,083.97 and 1,948.40 is: 2,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.49 : 7,083.97 = 1,948.40 : x
  2. Step 2: Convert to fraction form
    4,721.49/7,083.97 = 1,948.40/x
  3. Step 3: Cross multiply
    4,721.49x = 7,083.97 × 1,948.40
  4. Step 4: Simplify right side
    4,721.49x = 13,802,407.15
  5. Step 5: Solve for x
    x = 13,802,407.15/4,721.49
  6. Step 6: Final answer
    x = 2,923.32

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1.5x scale

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.