Home / 1,941.60-2,912.20-554.85

Finding the Fourth Proportional to 1,941.60, 2,912.20 and 554.85

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Solution

The fourth proportional to 1,941.60, 2,912.20 and 554.85 is: 832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.60 : 2,912.20 = 554.85 : x
  2. Step 2: Convert to fraction form
    1,941.60/2,912.20 = 554.85/x
  3. Step 3: Cross multiply
    1,941.60x = 2,912.20 × 554.85
  4. Step 4: Simplify right side
    1,941.60x = 1,615,816.83
  5. Step 5: Solve for x
    x = 1,615,816.83/1,941.60
  6. Step 6: Final answer
    x = 832.21

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1.5x scale

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.