Home / 1,602.75-2,405.62-823.32

Finding the Fourth Proportional to 1,602.75, 2,405.62 and 823.32

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Solution

The fourth proportional to 1,602.75, 2,405.62 and 823.32 is: 1,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.75 : 2,405.62 = 823.32 : x
  2. Step 2: Convert to fraction form
    1,602.75/2,405.62 = 823.32/x
  3. Step 3: Cross multiply
    1,602.75x = 2,405.62 × 823.32
  4. Step 4: Simplify right side
    1,602.75x = 1,980,595.06
  5. Step 5: Solve for x
    x = 1,980,595.06/1,602.75
  6. Step 6: Final answer
    x = 1,235.75

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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.