Home / 7,130.84-10,696.08-1,936.58

Finding the Fourth Proportional to 7,130.84, 10,696.08 and 1,936.58

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Solution

The fourth proportional to 7,130.84, 10,696.08 and 1,936.58 is: 2,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.84 : 10,696.08 = 1,936.58 : x
  2. Step 2: Convert to fraction form
    7,130.84/10,696.08 = 1,936.58/x
  3. Step 3: Cross multiply
    7,130.84x = 10,696.08 × 1,936.58
  4. Step 4: Simplify right side
    7,130.84x = 20,713,814.61
  5. Step 5: Solve for x
    x = 20,713,814.61/7,130.84
  6. Step 6: Final answer
    x = 2,904.82

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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.