Home / 2,947.76-4,068.04-1,621.44

Finding the Fourth Proportional to 2,947.76, 4,068.04 and 1,621.44

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Solution

The fourth proportional to 2,947.76, 4,068.04 and 1,621.44 is: 2,237.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.76 : 4,068.04 = 1,621.44 : x
  2. Step 2: Convert to fraction form
    2,947.76/4,068.04 = 1,621.44/x
  3. Step 3: Cross multiply
    2,947.76x = 4,068.04 × 1,621.44
  4. Step 4: Simplify right side
    2,947.76x = 6,596,082.78
  5. Step 5: Solve for x
    x = 6,596,082.78/2,947.76
  6. Step 6: Final answer
    x = 2,237.66

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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.