Home / 1,335.40-2,002.38-923.32

Finding the Fourth Proportional to 1,335.40, 2,002.38 and 923.32

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Solution

The fourth proportional to 1,335.40, 2,002.38 and 923.32 is: 1,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.40 : 2,002.38 = 923.32 : x
  2. Step 2: Convert to fraction form
    1,335.40/2,002.38 = 923.32/x
  3. Step 3: Cross multiply
    1,335.40x = 2,002.38 × 923.32
  4. Step 4: Simplify right side
    1,335.40x = 1,848,837.50
  5. Step 5: Solve for x
    x = 1,848,837.50/1,335.40
  6. Step 6: Final answer
    x = 1,384.48

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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.