Home / 3,470.54-4,788.17-1,977.40

Finding the Fourth Proportional to 3,470.54, 4,788.17 and 1,977.40

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Solution

The fourth proportional to 3,470.54, 4,788.17 and 1,977.40 is: 2,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.54 : 4,788.17 = 1,977.40 : x
  2. Step 2: Convert to fraction form
    3,470.54/4,788.17 = 1,977.40/x
  3. Step 3: Cross multiply
    3,470.54x = 4,788.17 × 1,977.40
  4. Step 4: Simplify right side
    3,470.54x = 9,468,127.36
  5. Step 5: Solve for x
    x = 9,468,127.36/3,470.54
  6. Step 6: Final answer
    x = 2,728.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.