Home / 3,840.66-5,297.65-2,661.50

Finding the Fourth Proportional to 3,840.66, 5,297.65 and 2,661.50

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Solution

The fourth proportional to 3,840.66, 5,297.65 and 2,661.50 is: 3,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.66 : 5,297.65 = 2,661.50 : x
  2. Step 2: Convert to fraction form
    3,840.66/5,297.65 = 2,661.50/x
  3. Step 3: Cross multiply
    3,840.66x = 5,297.65 × 2,661.50
  4. Step 4: Simplify right side
    3,840.66x = 14,099,702.07
  5. Step 5: Solve for x
    x = 14,099,702.07/3,840.66
  6. Step 6: Final answer
    x = 3,671.17

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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.