Home / 7,127.24-10,693.16-3,428.99

Finding the Fourth Proportional to 7,127.24, 10,693.16 and 3,428.99

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Solution

The fourth proportional to 7,127.24, 10,693.16 and 3,428.99 is: 5,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.24 : 10,693.16 = 3,428.99 : x
  2. Step 2: Convert to fraction form
    7,127.24/10,693.16 = 3,428.99/x
  3. Step 3: Cross multiply
    7,127.24x = 10,693.16 × 3,428.99
  4. Step 4: Simplify right side
    7,127.24x = 36,666,668.10
  5. Step 5: Solve for x
    x = 36,666,668.10/7,127.24
  6. Step 6: Final answer
    x = 5,144.59

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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.