Home / 2,685.45-3,705.92-1,637.52

Finding the Fourth Proportional to 2,685.45, 3,705.92 and 1,637.52

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Solution

The fourth proportional to 2,685.45, 3,705.92 and 1,637.52 is: 2,259.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.45 : 3,705.92 = 1,637.52 : x
  2. Step 2: Convert to fraction form
    2,685.45/3,705.92 = 1,637.52/x
  3. Step 3: Cross multiply
    2,685.45x = 3,705.92 × 1,637.52
  4. Step 4: Simplify right side
    2,685.45x = 6,068,502.17
  5. Step 5: Solve for x
    x = 6,068,502.17/2,685.45
  6. Step 6: Final answer
    x = 2,259.77

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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.