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Finding the Fourth Proportional to 1,807.76, 2,494.36 and 1,061.68

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Solution

The fourth proportional to 1,807.76, 2,494.36 and 1,061.68 is: 1,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.76 : 2,494.36 = 1,061.68 : x
  2. Step 2: Convert to fraction form
    1,807.76/2,494.36 = 1,061.68/x
  3. Step 3: Cross multiply
    1,807.76x = 2,494.36 × 1,061.68
  4. Step 4: Simplify right side
    1,807.76x = 2,648,212.12
  5. Step 5: Solve for x
    x = 2,648,212.12/1,807.76
  6. Step 6: Final answer
    x = 1,464.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.