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Finding the Fourth Proportional to 1,848.51, 2,772.77 and 752.58

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Solution

The fourth proportional to 1,848.51, 2,772.77 and 752.58 is: 1,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.51 : 2,772.77 = 752.58 : x
  2. Step 2: Convert to fraction form
    1,848.51/2,772.77 = 752.58/x
  3. Step 3: Cross multiply
    1,848.51x = 2,772.77 × 752.58
  4. Step 4: Simplify right side
    1,848.51x = 2,086,731.25
  5. Step 5: Solve for x
    x = 2,086,731.25/1,848.51
  6. Step 6: Final answer
    x = 1,128.87

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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.