Home / 1,602.40-2,399.28-1,383.52

Finding the Fourth Proportional to 1,602.40, 2,399.28 and 1,383.52

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Solution

The fourth proportional to 1,602.40, 2,399.28 and 1,383.52 is: 2,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.40 : 2,399.28 = 1,383.52 : x
  2. Step 2: Convert to fraction form
    1,602.40/2,399.28 = 1,383.52/x
  3. Step 3: Cross multiply
    1,602.40x = 2,399.28 × 1,383.52
  4. Step 4: Simplify right side
    1,602.40x = 3,319,451.87
  5. Step 5: Solve for x
    x = 3,319,451.87/1,602.40
  6. Step 6: Final answer
    x = 2,071.55

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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.