Home / 7,086.51-9,780.37-4,103.28

Finding the Fourth Proportional to 7,086.51, 9,780.37 and 4,103.28

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Solution

The fourth proportional to 7,086.51, 9,780.37 and 4,103.28 is: 5,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.51 : 9,780.37 = 4,103.28 : x
  2. Step 2: Convert to fraction form
    7,086.51/9,780.37 = 4,103.28/x
  3. Step 3: Cross multiply
    7,086.51x = 9,780.37 × 4,103.28
  4. Step 4: Simplify right side
    7,086.51x = 40,131,586.36
  5. Step 5: Solve for x
    x = 40,131,586.36/7,086.51
  6. Step 6: Final answer
    x = 5,663.10

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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.