Home / 1,890.06-2,601.90-1,557.96

Finding the Fourth Proportional to 1,890.06, 2,601.90 and 1,557.96

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Solution

The fourth proportional to 1,890.06, 2,601.90 and 1,557.96 is: 2,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.06 : 2,601.90 = 1,557.96 : x
  2. Step 2: Convert to fraction form
    1,890.06/2,601.90 = 1,557.96/x
  3. Step 3: Cross multiply
    1,890.06x = 2,601.90 × 1,557.96
  4. Step 4: Simplify right side
    1,890.06x = 4,053,656.12
  5. Step 5: Solve for x
    x = 4,053,656.12/1,890.06
  6. Step 6: Final answer
    x = 2,144.72

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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.