Home / 2,807.64-3,874.59-1,629.18

Finding the Fourth Proportional to 2,807.64, 3,874.59 and 1,629.18

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Solution

The fourth proportional to 2,807.64, 3,874.59 and 1,629.18 is: 2,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.64 : 3,874.59 = 1,629.18 : x
  2. Step 2: Convert to fraction form
    2,807.64/3,874.59 = 1,629.18/x
  3. Step 3: Cross multiply
    2,807.64x = 3,874.59 × 1,629.18
  4. Step 4: Simplify right side
    2,807.64x = 6,312,404.54
  5. Step 5: Solve for x
    x = 6,312,404.54/2,807.64
  6. Step 6: Final answer
    x = 2,248.30

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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.