Home / 1,954.35-2,931.89-655.83

Finding the Fourth Proportional to 1,954.35, 2,931.89 and 655.83

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Solution

The fourth proportional to 1,954.35, 2,931.89 and 655.83 is: 983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.35 : 2,931.89 = 655.83 : x
  2. Step 2: Convert to fraction form
    1,954.35/2,931.89 = 655.83/x
  3. Step 3: Cross multiply
    1,954.35x = 2,931.89 × 655.83
  4. Step 4: Simplify right side
    1,954.35x = 1,922,818.14
  5. Step 5: Solve for x
    x = 1,922,818.14/1,954.35
  6. Step 6: Final answer
    x = 983.87

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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.