Home / 2,948.20-4,068.36-1,621.96

Finding the Fourth Proportional to 2,948.20, 4,068.36 and 1,621.96

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Solution

The fourth proportional to 2,948.20, 4,068.36 and 1,621.96 is: 2,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.20 : 4,068.36 = 1,621.96 : x
  2. Step 2: Convert to fraction form
    2,948.20/4,068.36 = 1,621.96/x
  3. Step 3: Cross multiply
    2,948.20x = 4,068.36 × 1,621.96
  4. Step 4: Simplify right side
    2,948.20x = 6,598,717.19
  5. Step 5: Solve for x
    x = 6,598,717.19/2,948.20
  6. Step 6: Final answer
    x = 2,238.22

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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.