Home / 7,089.83-9,786.11-4,106.40

Finding the Fourth Proportional to 7,089.83, 9,786.11 and 4,106.40

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Solution

The fourth proportional to 7,089.83, 9,786.11 and 4,106.40 is: 5,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.83 : 9,786.11 = 4,106.40 : x
  2. Step 2: Convert to fraction form
    7,089.83/9,786.11 = 4,106.40/x
  3. Step 3: Cross multiply
    7,089.83x = 9,786.11 × 4,106.40
  4. Step 4: Simplify right side
    7,089.83x = 40,185,682.10
  5. Step 5: Solve for x
    x = 40,185,682.10/7,089.83
  6. Step 6: Final answer
    x = 5,668.07

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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.