Home / 1,487.45-2,052.71-824.34

Finding the Fourth Proportional to 1,487.45, 2,052.71 and 824.34

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Solution

The fourth proportional to 1,487.45, 2,052.71 and 824.34 is: 1,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.45 : 2,052.71 = 824.34 : x
  2. Step 2: Convert to fraction form
    1,487.45/2,052.71 = 824.34/x
  3. Step 3: Cross multiply
    1,487.45x = 2,052.71 × 824.34
  4. Step 4: Simplify right side
    1,487.45x = 1,692,126.84
  5. Step 5: Solve for x
    x = 1,692,126.84/1,487.45
  6. Step 6: Final answer
    x = 1,137.60

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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.