Home / 7,070.36-9,757.32-3,926.80

Finding the Fourth Proportional to 7,070.36, 9,757.32 and 3,926.80

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Solution

The fourth proportional to 7,070.36, 9,757.32 and 3,926.80 is: 5,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.36 : 9,757.32 = 3,926.80 : x
  2. Step 2: Convert to fraction form
    7,070.36/9,757.32 = 3,926.80/x
  3. Step 3: Cross multiply
    7,070.36x = 9,757.32 × 3,926.80
  4. Step 4: Simplify right side
    7,070.36x = 38,315,044.18
  5. Step 5: Solve for x
    x = 38,315,044.18/7,070.36
  6. Step 6: Final answer
    x = 5,419.11

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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.