Home / 1,836.32-2,752.77-666.05

Finding the Fourth Proportional to 1,836.32, 2,752.77 and 666.05

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Solution

The fourth proportional to 1,836.32, 2,752.77 and 666.05 is: 998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.32 : 2,752.77 = 666.05 : x
  2. Step 2: Convert to fraction form
    1,836.32/2,752.77 = 666.05/x
  3. Step 3: Cross multiply
    1,836.32x = 2,752.77 × 666.05
  4. Step 4: Simplify right side
    1,836.32x = 1,833,468.69
  5. Step 5: Solve for x
    x = 1,833,468.69/1,836.32
  6. Step 6: Final answer
    x = 998.45

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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.