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Finding the Fourth Proportional to 4,851.60, 7,275.60 and 1,929.30

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Solution

The fourth proportional to 4,851.60, 7,275.60 and 1,929.30 is: 2,893.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.60 : 7,275.60 = 1,929.30 : x
  2. Step 2: Convert to fraction form
    4,851.60/7,275.60 = 1,929.30/x
  3. Step 3: Cross multiply
    4,851.60x = 7,275.60 × 1,929.30
  4. Step 4: Simplify right side
    4,851.60x = 14,036,815.08
  5. Step 5: Solve for x
    x = 14,036,815.08/4,851.60
  6. Step 6: Final answer
    x = 2,893.23

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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.