Home / 1,555.36-2,333.64-939.52

Finding the Fourth Proportional to 1,555.36, 2,333.64 and 939.52

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Solution

The fourth proportional to 1,555.36, 2,333.64 and 939.52 is: 1,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.36 : 2,333.64 = 939.52 : x
  2. Step 2: Convert to fraction form
    1,555.36/2,333.64 = 939.52/x
  3. Step 3: Cross multiply
    1,555.36x = 2,333.64 × 939.52
  4. Step 4: Simplify right side
    1,555.36x = 2,192,501.45
  5. Step 5: Solve for x
    x = 2,192,501.45/1,555.36
  6. Step 6: Final answer
    x = 1,409.64

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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.