Home / 1,530.70-2,112.68-941.83

Finding the Fourth Proportional to 1,530.70, 2,112.68 and 941.83

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Solution

The fourth proportional to 1,530.70, 2,112.68 and 941.83 is: 1,299.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.70 : 2,112.68 = 941.83 : x
  2. Step 2: Convert to fraction form
    1,530.70/2,112.68 = 941.83/x
  3. Step 3: Cross multiply
    1,530.70x = 2,112.68 × 941.83
  4. Step 4: Simplify right side
    1,530.70x = 1,989,782.48
  5. Step 5: Solve for x
    x = 1,989,782.48/1,530.70
  6. Step 6: Final answer
    x = 1,299.92

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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.