Home / 1,487.16-2,052.18-824.11

Finding the Fourth Proportional to 1,487.16, 2,052.18 and 824.11

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Solution

The fourth proportional to 1,487.16, 2,052.18 and 824.11 is: 1,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.16 : 2,052.18 = 824.11 : x
  2. Step 2: Convert to fraction form
    1,487.16/2,052.18 = 824.11/x
  3. Step 3: Cross multiply
    1,487.16x = 2,052.18 × 824.11
  4. Step 4: Simplify right side
    1,487.16x = 1,691,222.06
  5. Step 5: Solve for x
    x = 1,691,222.06/1,487.16
  6. Step 6: Final answer
    x = 1,137.22

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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.