Home / 2,825.64-3,899.84-1,706.74

Finding the Fourth Proportional to 2,825.64, 3,899.84 and 1,706.74

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Solution

The fourth proportional to 2,825.64, 3,899.84 and 1,706.74 is: 2,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.64 : 3,899.84 = 1,706.74 : x
  2. Step 2: Convert to fraction form
    2,825.64/3,899.84 = 1,706.74/x
  3. Step 3: Cross multiply
    2,825.64x = 3,899.84 × 1,706.74
  4. Step 4: Simplify right side
    2,825.64x = 6,656,018.20
  5. Step 5: Solve for x
    x = 6,656,018.20/2,825.64
  6. Step 6: Final answer
    x = 2,355.58

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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.