Home / 2,740.98-4,127.28-2,015.64

Finding the Fourth Proportional to 2,740.98, 4,127.28 and 2,015.64

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Solution

The fourth proportional to 2,740.98, 4,127.28 and 2,015.64 is: 3,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.98 : 4,127.28 = 2,015.64 : x
  2. Step 2: Convert to fraction form
    2,740.98/4,127.28 = 2,015.64/x
  3. Step 3: Cross multiply
    2,740.98x = 4,127.28 × 2,015.64
  4. Step 4: Simplify right side
    2,740.98x = 8,319,110.66
  5. Step 5: Solve for x
    x = 8,319,110.66/2,740.98
  6. Step 6: Final answer
    x = 3,035.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.