Home / 2,690.08-3,712.64-1,642.56

Finding the Fourth Proportional to 2,690.08, 3,712.64 and 1,642.56

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Solution

The fourth proportional to 2,690.08, 3,712.64 and 1,642.56 is: 2,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.08 : 3,712.64 = 1,642.56 : x
  2. Step 2: Convert to fraction form
    2,690.08/3,712.64 = 1,642.56/x
  3. Step 3: Cross multiply
    2,690.08x = 3,712.64 × 1,642.56
  4. Step 4: Simplify right side
    2,690.08x = 6,098,233.96
  5. Step 5: Solve for x
    x = 6,098,233.96/2,690.08
  6. Step 6: Final answer
    x = 2,266.93

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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.