Home / 1,937.91-2,906.84-1,320.08

Finding the Fourth Proportional to 1,937.91, 2,906.84 and 1,320.08

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Solution

The fourth proportional to 1,937.91, 2,906.84 and 1,320.08 is: 1,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.91 : 2,906.84 = 1,320.08 : x
  2. Step 2: Convert to fraction form
    1,937.91/2,906.84 = 1,320.08/x
  3. Step 3: Cross multiply
    1,937.91x = 2,906.84 × 1,320.08
  4. Step 4: Simplify right side
    1,937.91x = 3,837,271.91
  5. Step 5: Solve for x
    x = 3,837,271.91/1,937.91
  6. Step 6: Final answer
    x = 1,980.11

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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.