Home / 1,905.72-2,859.06-1,873.08

Finding the Fourth Proportional to 1,905.72, 2,859.06 and 1,873.08

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Solution

The fourth proportional to 1,905.72, 2,859.06 and 1,873.08 is: 2,810.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.72 : 2,859.06 = 1,873.08 : x
  2. Step 2: Convert to fraction form
    1,905.72/2,859.06 = 1,873.08/x
  3. Step 3: Cross multiply
    1,905.72x = 2,859.06 × 1,873.08
  4. Step 4: Simplify right side
    1,905.72x = 5,355,248.10
  5. Step 5: Solve for x
    x = 5,355,248.10/1,905.72
  6. Step 6: Final answer
    x = 2,810.09

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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.