Home / 3,647.40-5,033.88-2,807.44

Finding the Fourth Proportional to 3,647.40, 5,033.88 and 2,807.44

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Solution

The fourth proportional to 3,647.40, 5,033.88 and 2,807.44 is: 3,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.40 : 5,033.88 = 2,807.44 : x
  2. Step 2: Convert to fraction form
    3,647.40/5,033.88 = 2,807.44/x
  3. Step 3: Cross multiply
    3,647.40x = 5,033.88 × 2,807.44
  4. Step 4: Simplify right side
    3,647.40x = 14,132,316.07
  5. Step 5: Solve for x
    x = 14,132,316.07/3,647.40
  6. Step 6: Final answer
    x = 3,874.63

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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.