Home / 7,801.36-11,703.56-2,871.04

Finding the Fourth Proportional to 7,801.36, 11,703.56 and 2,871.04

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Solution

The fourth proportional to 7,801.36, 11,703.56 and 2,871.04 is: 4,307.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.36 : 11,703.56 = 2,871.04 : x
  2. Step 2: Convert to fraction form
    7,801.36/11,703.56 = 2,871.04/x
  3. Step 3: Cross multiply
    7,801.36x = 11,703.56 × 2,871.04
  4. Step 4: Simplify right side
    7,801.36x = 33,601,388.90
  5. Step 5: Solve for x
    x = 33,601,388.90/7,801.36
  6. Step 6: Final answer
    x = 4,307.12

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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.