Home / 1,487.05-2,052.24-824.11

Finding the Fourth Proportional to 1,487.05, 2,052.24 and 824.11

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Solution

The fourth proportional to 1,487.05, 2,052.24 and 824.11 is: 1,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.05 : 2,052.24 = 824.11 : x
  2. Step 2: Convert to fraction form
    1,487.05/2,052.24 = 824.11/x
  3. Step 3: Cross multiply
    1,487.05x = 2,052.24 × 824.11
  4. Step 4: Simplify right side
    1,487.05x = 1,691,271.51
  5. Step 5: Solve for x
    x = 1,691,271.51/1,487.05
  6. Step 6: Final answer
    x = 1,137.33

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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.