Home / 4,810.76-6,638.80-2,715.56

Finding the Fourth Proportional to 4,810.76, 6,638.80 and 2,715.56

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Solution

The fourth proportional to 4,810.76, 6,638.80 and 2,715.56 is: 3,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.76 : 6,638.80 = 2,715.56 : x
  2. Step 2: Convert to fraction form
    4,810.76/6,638.80 = 2,715.56/x
  3. Step 3: Cross multiply
    4,810.76x = 6,638.80 × 2,715.56
  4. Step 4: Simplify right side
    4,810.76x = 18,028,059.73
  5. Step 5: Solve for x
    x = 18,028,059.73/4,810.76
  6. Step 6: Final answer
    x = 3,747.45

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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.