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Finding the Fourth Proportional to 1,852.76, 2,780.44 and 1,031.68

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Solution

The fourth proportional to 1,852.76, 2,780.44 and 1,031.68 is: 1,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.76 : 2,780.44 = 1,031.68 : x
  2. Step 2: Convert to fraction form
    1,852.76/2,780.44 = 1,031.68/x
  3. Step 3: Cross multiply
    1,852.76x = 2,780.44 × 1,031.68
  4. Step 4: Simplify right side
    1,852.76x = 2,868,524.34
  5. Step 5: Solve for x
    x = 2,868,524.34/1,852.76
  6. Step 6: Final answer
    x = 1,548.24

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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.