Home / 1,384.29-2,066.58-1,176.66

Finding the Fourth Proportional to 1,384.29, 2,066.58 and 1,176.66

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Solution

The fourth proportional to 1,384.29, 2,066.58 and 1,176.66 is: 1,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.29 : 2,066.58 = 1,176.66 : x
  2. Step 2: Convert to fraction form
    1,384.29/2,066.58 = 1,176.66/x
  3. Step 3: Cross multiply
    1,384.29x = 2,066.58 × 1,176.66
  4. Step 4: Simplify right side
    1,384.29x = 2,431,662.02
  5. Step 5: Solve for x
    x = 2,431,662.02/1,384.29
  6. Step 6: Final answer
    x = 1,756.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.