Home / 2,635.42-3,635.94-1,587.28

Finding the Fourth Proportional to 2,635.42, 3,635.94 and 1,587.28

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Solution

The fourth proportional to 2,635.42, 3,635.94 and 1,587.28 is: 2,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.42 : 3,635.94 = 1,587.28 : x
  2. Step 2: Convert to fraction form
    2,635.42/3,635.94 = 1,587.28/x
  3. Step 3: Cross multiply
    2,635.42x = 3,635.94 × 1,587.28
  4. Step 4: Simplify right side
    2,635.42x = 5,771,254.84
  5. Step 5: Solve for x
    x = 5,771,254.84/2,635.42
  6. Step 6: Final answer
    x = 2,189.88

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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.