Home / 2,921.78-4,384.99-1,535.93

Finding the Fourth Proportional to 2,921.78, 4,384.99 and 1,535.93

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Solution

The fourth proportional to 2,921.78, 4,384.99 and 1,535.93 is: 2,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.78 : 4,384.99 = 1,535.93 : x
  2. Step 2: Convert to fraction form
    2,921.78/4,384.99 = 1,535.93/x
  3. Step 3: Cross multiply
    2,921.78x = 4,384.99 × 1,535.93
  4. Step 4: Simplify right side
    2,921.78x = 6,735,017.69
  5. Step 5: Solve for x
    x = 6,735,017.69/2,921.78
  6. Step 6: Final answer
    x = 2,305.11

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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.