Home / 2,657.32-3,665.45-1,912.26

Finding the Fourth Proportional to 2,657.32, 3,665.45 and 1,912.26

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Solution

The fourth proportional to 2,657.32, 3,665.45 and 1,912.26 is: 2,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.32 : 3,665.45 = 1,912.26 : x
  2. Step 2: Convert to fraction form
    2,657.32/3,665.45 = 1,912.26/x
  3. Step 3: Cross multiply
    2,657.32x = 3,665.45 × 1,912.26
  4. Step 4: Simplify right side
    2,657.32x = 7,009,279.22
  5. Step 5: Solve for x
    x = 7,009,279.22/2,657.32
  6. Step 6: Final answer
    x = 2,637.73

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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.