Home / 4,871.38-6,721.32-2,746.50

Finding the Fourth Proportional to 4,871.38, 6,721.32 and 2,746.50

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Solution

The fourth proportional to 4,871.38, 6,721.32 and 2,746.50 is: 3,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.38 : 6,721.32 = 2,746.50 : x
  2. Step 2: Convert to fraction form
    4,871.38/6,721.32 = 2,746.50/x
  3. Step 3: Cross multiply
    4,871.38x = 6,721.32 × 2,746.50
  4. Step 4: Simplify right side
    4,871.38x = 18,460,105.38
  5. Step 5: Solve for x
    x = 18,460,105.38/4,871.38
  6. Step 6: Final answer
    x = 3,789.50

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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.