Home / 2,930.34-4,395.60-1,080.66

Finding the Fourth Proportional to 2,930.34, 4,395.60 and 1,080.66

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Solution

The fourth proportional to 2,930.34, 4,395.60 and 1,080.66 is: 1,621.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.34 : 4,395.60 = 1,080.66 : x
  2. Step 2: Convert to fraction form
    2,930.34/4,395.60 = 1,080.66/x
  3. Step 3: Cross multiply
    2,930.34x = 4,395.60 × 1,080.66
  4. Step 4: Simplify right side
    2,930.34x = 4,750,149.10
  5. Step 5: Solve for x
    x = 4,750,149.10/2,930.34
  6. Step 6: Final answer
    x = 1,621.02

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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.