Home / 1,653.50-2,471.10-1,327.34

Finding the Fourth Proportional to 1,653.50, 2,471.10 and 1,327.34

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Solution

The fourth proportional to 1,653.50, 2,471.10 and 1,327.34 is: 1,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.50 : 2,471.10 = 1,327.34 : x
  2. Step 2: Convert to fraction form
    1,653.50/2,471.10 = 1,327.34/x
  3. Step 3: Cross multiply
    1,653.50x = 2,471.10 × 1,327.34
  4. Step 4: Simplify right side
    1,653.50x = 3,279,989.87
  5. Step 5: Solve for x
    x = 3,279,989.87/1,653.50
  6. Step 6: Final answer
    x = 1,983.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.