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Finding the Fourth Proportional to 2,686.54, 4,029.51 and 837.50

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Solution

The fourth proportional to 2,686.54, 4,029.51 and 837.50 is: 1,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.54 : 4,029.51 = 837.50 : x
  2. Step 2: Convert to fraction form
    2,686.54/4,029.51 = 837.50/x
  3. Step 3: Cross multiply
    2,686.54x = 4,029.51 × 837.50
  4. Step 4: Simplify right side
    2,686.54x = 3,374,714.63
  5. Step 5: Solve for x
    x = 3,374,714.63/2,686.54
  6. Step 6: Final answer
    x = 1,256.16

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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.