Home / 4,811.52-6,638.58-2,921.52

Finding the Fourth Proportional to 4,811.52, 6,638.58 and 2,921.52

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Solution

The fourth proportional to 4,811.52, 6,638.58 and 2,921.52 is: 4,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.52 : 6,638.58 = 2,921.52 : x
  2. Step 2: Convert to fraction form
    4,811.52/6,638.58 = 2,921.52/x
  3. Step 3: Cross multiply
    4,811.52x = 6,638.58 × 2,921.52
  4. Step 4: Simplify right side
    4,811.52x = 19,394,744.24
  5. Step 5: Solve for x
    x = 19,394,744.24/4,811.52
  6. Step 6: Final answer
    x = 4,030.90

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1.5x scale

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.