Home / 4,871.28-6,721.85-2,746.34

Finding the Fourth Proportional to 4,871.28, 6,721.85 and 2,746.34

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Solution

The fourth proportional to 4,871.28, 6,721.85 and 2,746.34 is: 3,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.28 : 6,721.85 = 2,746.34 : x
  2. Step 2: Convert to fraction form
    4,871.28/6,721.85 = 2,746.34/x
  3. Step 3: Cross multiply
    4,871.28x = 6,721.85 × 2,746.34
  4. Step 4: Simplify right side
    4,871.28x = 18,460,458.79
  5. Step 5: Solve for x
    x = 18,460,458.79/4,871.28
  6. Step 6: Final answer
    x = 3,789.65

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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.