Home / 7,129.36-10,694.05-1,935.24

Finding the Fourth Proportional to 7,129.36, 10,694.05 and 1,935.24

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Solution

The fourth proportional to 7,129.36, 10,694.05 and 1,935.24 is: 2,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.36 : 10,694.05 = 1,935.24 : x
  2. Step 2: Convert to fraction form
    7,129.36/10,694.05 = 1,935.24/x
  3. Step 3: Cross multiply
    7,129.36x = 10,694.05 × 1,935.24
  4. Step 4: Simplify right side
    7,129.36x = 20,695,490.18
  5. Step 5: Solve for x
    x = 20,695,490.18/7,129.36
  6. Step 6: Final answer
    x = 2,902.85

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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.