Home / 1,066.15-1,599.29-335.78

Finding the Fourth Proportional to 1,066.15, 1,599.29 and 335.78

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Solution

The fourth proportional to 1,066.15, 1,599.29 and 335.78 is: 503.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.15 : 1,599.29 = 335.78 : x
  2. Step 2: Convert to fraction form
    1,066.15/1,599.29 = 335.78/x
  3. Step 3: Cross multiply
    1,066.15x = 1,599.29 × 335.78
  4. Step 4: Simplify right side
    1,066.15x = 537,009.60
  5. Step 5: Solve for x
    x = 537,009.60/1,066.15
  6. Step 6: Final answer
    x = 503.69

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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.