Home / 1,888.05-2,604.01-1,215.91

Finding the Fourth Proportional to 1,888.05, 2,604.01 and 1,215.91

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Solution

The fourth proportional to 1,888.05, 2,604.01 and 1,215.91 is: 1,676.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.05 : 2,604.01 = 1,215.91 : x
  2. Step 2: Convert to fraction form
    1,888.05/2,604.01 = 1,215.91/x
  3. Step 3: Cross multiply
    1,888.05x = 2,604.01 × 1,215.91
  4. Step 4: Simplify right side
    1,888.05x = 3,166,246.83
  5. Step 5: Solve for x
    x = 3,166,246.83/1,888.05
  6. Step 6: Final answer
    x = 1,676.99

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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.