Home / 1,555.28-2,333.28-824.69

Finding the Fourth Proportional to 1,555.28, 2,333.28 and 824.69

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Solution

The fourth proportional to 1,555.28, 2,333.28 and 824.69 is: 1,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.28 : 2,333.28 = 824.69 : x
  2. Step 2: Convert to fraction form
    1,555.28/2,333.28 = 824.69/x
  3. Step 3: Cross multiply
    1,555.28x = 2,333.28 × 824.69
  4. Step 4: Simplify right side
    1,555.28x = 1,924,232.68
  5. Step 5: Solve for x
    x = 1,924,232.68/1,555.28
  6. Step 6: Final answer
    x = 1,237.23

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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.