Home / 2,921.56-4,384.98-1,535.80

Finding the Fourth Proportional to 2,921.56, 4,384.98 and 1,535.80

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Solution

The fourth proportional to 2,921.56, 4,384.98 and 1,535.80 is: 2,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.56 : 4,384.98 = 1,535.80 : x
  2. Step 2: Convert to fraction form
    2,921.56/4,384.98 = 1,535.80/x
  3. Step 3: Cross multiply
    2,921.56x = 4,384.98 × 1,535.80
  4. Step 4: Simplify right side
    2,921.56x = 6,734,452.28
  5. Step 5: Solve for x
    x = 6,734,452.28/2,921.56
  6. Step 6: Final answer
    x = 2,305.09

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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.