Home / 7,073.12-9,760.70-4,089.49

Finding the Fourth Proportional to 7,073.12, 9,760.70 and 4,089.49

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Solution

The fourth proportional to 7,073.12, 9,760.70 and 4,089.49 is: 5,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.12 : 9,760.70 = 4,089.49 : x
  2. Step 2: Convert to fraction form
    7,073.12/9,760.70 = 4,089.49/x
  3. Step 3: Cross multiply
    7,073.12x = 9,760.70 × 4,089.49
  4. Step 4: Simplify right side
    7,073.12x = 39,916,270.86
  5. Step 5: Solve for x
    x = 39,916,270.86/7,073.12
  6. Step 6: Final answer
    x = 5,643.37

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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.