Home / 2,750.60-4,120.30-1,707.40

Finding the Fourth Proportional to 2,750.60, 4,120.30 and 1,707.40

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Solution

The fourth proportional to 2,750.60, 4,120.30 and 1,707.40 is: 2,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.60 : 4,120.30 = 1,707.40 : x
  2. Step 2: Convert to fraction form
    2,750.60/4,120.30 = 1,707.40/x
  3. Step 3: Cross multiply
    2,750.60x = 4,120.30 × 1,707.40
  4. Step 4: Simplify right side
    2,750.60x = 7,035,000.22
  5. Step 5: Solve for x
    x = 7,035,000.22/2,750.60
  6. Step 6: Final answer
    x = 2,557.62

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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.