Home / 4,871.25-6,722.34-3,102.48

Finding the Fourth Proportional to 4,871.25, 6,722.34 and 3,102.48

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Solution

The fourth proportional to 4,871.25, 6,722.34 and 3,102.48 is: 4,281.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.25 : 6,722.34 = 3,102.48 : x
  2. Step 2: Convert to fraction form
    4,871.25/6,722.34 = 3,102.48/x
  3. Step 3: Cross multiply
    4,871.25x = 6,722.34 × 3,102.48
  4. Step 4: Simplify right side
    4,871.25x = 20,855,925.40
  5. Step 5: Solve for x
    x = 20,855,925.40/4,871.25
  6. Step 6: Final answer
    x = 4,281.43

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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.