Home / 1,942.65-2,681.91-1,490.85

Finding the Fourth Proportional to 1,942.65, 2,681.91 and 1,490.85

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Solution

The fourth proportional to 1,942.65, 2,681.91 and 1,490.85 is: 2,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.65 : 2,681.91 = 1,490.85 : x
  2. Step 2: Convert to fraction form
    1,942.65/2,681.91 = 1,490.85/x
  3. Step 3: Cross multiply
    1,942.65x = 2,681.91 × 1,490.85
  4. Step 4: Simplify right side
    1,942.65x = 3,998,325.52
  5. Step 5: Solve for x
    x = 3,998,325.52/1,942.65
  6. Step 6: Final answer
    x = 2,058.18

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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.