Home / 2,635.72-3,637.38-1,807.72

Finding the Fourth Proportional to 2,635.72, 3,637.38 and 1,807.72

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Solution

The fourth proportional to 2,635.72, 3,637.38 and 1,807.72 is: 2,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.72 : 3,637.38 = 1,807.72 : x
  2. Step 2: Convert to fraction form
    2,635.72/3,637.38 = 1,807.72/x
  3. Step 3: Cross multiply
    2,635.72x = 3,637.38 × 1,807.72
  4. Step 4: Simplify right side
    2,635.72x = 6,575,364.57
  5. Step 5: Solve for x
    x = 6,575,364.57/2,635.72
  6. Step 6: Final answer
    x = 2,494.71

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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.