Home / 2,656.90-3,664.59-1,816.73

Finding the Fourth Proportional to 2,656.90, 3,664.59 and 1,816.73

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Solution

The fourth proportional to 2,656.90, 3,664.59 and 1,816.73 is: 2,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.90 : 3,664.59 = 1,816.73 : x
  2. Step 2: Convert to fraction form
    2,656.90/3,664.59 = 1,816.73/x
  3. Step 3: Cross multiply
    2,656.90x = 3,664.59 × 1,816.73
  4. Step 4: Simplify right side
    2,656.90x = 6,657,569.42
  5. Step 5: Solve for x
    x = 6,657,569.42/2,656.90
  6. Step 6: Final answer
    x = 2,505.76

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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.