Home / 1,561.73-2,157.80-1,232.69

Finding the Fourth Proportional to 1,561.73, 2,157.80 and 1,232.69

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Solution

The fourth proportional to 1,561.73, 2,157.80 and 1,232.69 is: 1,703.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.73 : 2,157.80 = 1,232.69 : x
  2. Step 2: Convert to fraction form
    1,561.73/2,157.80 = 1,232.69/x
  3. Step 3: Cross multiply
    1,561.73x = 2,157.80 × 1,232.69
  4. Step 4: Simplify right side
    1,561.73x = 2,659,881.53
  5. Step 5: Solve for x
    x = 2,659,881.53/1,561.73
  6. Step 6: Final answer
    x = 1,703.17

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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.