Home / 7,110.84-9,812.28-4,125.99

Finding the Fourth Proportional to 7,110.84, 9,812.28 and 4,125.99

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Solution

The fourth proportional to 7,110.84, 9,812.28 and 4,125.99 is: 5,693.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.84 : 9,812.28 = 4,125.99 : x
  2. Step 2: Convert to fraction form
    7,110.84/9,812.28 = 4,125.99/x
  3. Step 3: Cross multiply
    7,110.84x = 9,812.28 × 4,125.99
  4. Step 4: Simplify right side
    7,110.84x = 40,485,369.16
  5. Step 5: Solve for x
    x = 40,485,369.16/7,110.84
  6. Step 6: Final answer
    x = 5,693.47

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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.