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Finding the Fourth Proportional to 2,477.76, 3,399 and 2,328.72

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Solution

The fourth proportional to 2,477.76, 3,399 and 2,328.72 is: 3,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.76 : 3,399 = 2,328.72 : x
  2. Step 2: Convert to fraction form
    2,477.76/3,399 = 2,328.72/x
  3. Step 3: Cross multiply
    2,477.76x = 3,399 × 2,328.72
  4. Step 4: Simplify right side
    2,477.76x = 7,915,319.28
  5. Step 5: Solve for x
    x = 7,915,319.28/2,477.76
  6. Step 6: Final answer
    x = 3,194.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.