Home / 7,319.48-10,977.97-2,638.55

Finding the Fourth Proportional to 7,319.48, 10,977.97 and 2,638.55

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Solution

The fourth proportional to 7,319.48, 10,977.97 and 2,638.55 is: 3,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.48 : 10,977.97 = 2,638.55 : x
  2. Step 2: Convert to fraction form
    7,319.48/10,977.97 = 2,638.55/x
  3. Step 3: Cross multiply
    7,319.48x = 10,977.97 × 2,638.55
  4. Step 4: Simplify right side
    7,319.48x = 28,965,943.59
  5. Step 5: Solve for x
    x = 28,965,943.59/7,319.48
  6. Step 6: Final answer
    x = 3,957.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.