Home / 7,105.14-10,643.40-3,590.28

Finding the Fourth Proportional to 7,105.14, 10,643.40 and 3,590.28

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Solution

The fourth proportional to 7,105.14, 10,643.40 and 3,590.28 is: 5,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.14 : 10,643.40 = 3,590.28 : x
  2. Step 2: Convert to fraction form
    7,105.14/10,643.40 = 3,590.28/x
  3. Step 3: Cross multiply
    7,105.14x = 10,643.40 × 3,590.28
  4. Step 4: Simplify right side
    7,105.14x = 38,212,786.15
  5. Step 5: Solve for x
    x = 38,212,786.15/7,105.14
  6. Step 6: Final answer
    x = 5,378.19

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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.