Home / 4,946.40-6,821.52-3,174.88

Finding the Fourth Proportional to 4,946.40, 6,821.52 and 3,174.88

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Solution

The fourth proportional to 4,946.40, 6,821.52 and 3,174.88 is: 4,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,946.40 : 6,821.52 = 3,174.88 : x
  2. Step 2: Convert to fraction form
    4,946.40/6,821.52 = 3,174.88/x
  3. Step 3: Cross multiply
    4,946.40x = 6,821.52 × 3,174.88
  4. Step 4: Simplify right side
    4,946.40x = 21,657,507.42
  5. Step 5: Solve for x
    x = 21,657,507.42/4,946.40
  6. Step 6: Final answer
    x = 4,378.44

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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.