Home / 7,021.78-10,532.70-1,827.28

Finding the Fourth Proportional to 7,021.78, 10,532.70 and 1,827.28

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Solution

The fourth proportional to 7,021.78, 10,532.70 and 1,827.28 is: 2,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.78 : 10,532.70 = 1,827.28 : x
  2. Step 2: Convert to fraction form
    7,021.78/10,532.70 = 1,827.28/x
  3. Step 3: Cross multiply
    7,021.78x = 10,532.70 × 1,827.28
  4. Step 4: Simplify right side
    7,021.78x = 19,246,192.06
  5. Step 5: Solve for x
    x = 19,246,192.06/7,021.78
  6. Step 6: Final answer
    x = 2,740.93

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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.