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Finding the Fourth Proportional to 3,028.76, 4,543.14 and 837.60

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Solution

The fourth proportional to 3,028.76, 4,543.14 and 837.60 is: 1,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.76 : 4,543.14 = 837.60 : x
  2. Step 2: Convert to fraction form
    3,028.76/4,543.14 = 837.60/x
  3. Step 3: Cross multiply
    3,028.76x = 4,543.14 × 837.60
  4. Step 4: Simplify right side
    3,028.76x = 3,805,334.06
  5. Step 5: Solve for x
    x = 3,805,334.06/3,028.76
  6. Step 6: Final answer
    x = 1,256.40

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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.