Home / 2,739.60-4,106.96-1,007.80

Finding the Fourth Proportional to 2,739.60, 4,106.96 and 1,007.80

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Solution

The fourth proportional to 2,739.60, 4,106.96 and 1,007.80 is: 1,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.60 : 4,106.96 = 1,007.80 : x
  2. Step 2: Convert to fraction form
    2,739.60/4,106.96 = 1,007.80/x
  3. Step 3: Cross multiply
    2,739.60x = 4,106.96 × 1,007.80
  4. Step 4: Simplify right side
    2,739.60x = 4,138,994.29
  5. Step 5: Solve for x
    x = 4,138,994.29/2,739.60
  6. Step 6: Final answer
    x = 1,510.80

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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.