Home / 7,072.83-9,760.56-4,421.80

Finding the Fourth Proportional to 7,072.83, 9,760.56 and 4,421.80

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Solution

The fourth proportional to 7,072.83, 9,760.56 and 4,421.80 is: 6,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.83 : 9,760.56 = 4,421.80 : x
  2. Step 2: Convert to fraction form
    7,072.83/9,760.56 = 4,421.80/x
  3. Step 3: Cross multiply
    7,072.83x = 9,760.56 × 4,421.80
  4. Step 4: Simplify right side
    7,072.83x = 43,159,244.21
  5. Step 5: Solve for x
    x = 43,159,244.21/7,072.83
  6. Step 6: Final answer
    x = 6,102.12

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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.