Home / 1,643.03-2,463.60-1,123.82

Finding the Fourth Proportional to 1,643.03, 2,463.60 and 1,123.82

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Solution

The fourth proportional to 1,643.03, 2,463.60 and 1,123.82 is: 1,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.03 : 2,463.60 = 1,123.82 : x
  2. Step 2: Convert to fraction form
    1,643.03/2,463.60 = 1,123.82/x
  3. Step 3: Cross multiply
    1,643.03x = 2,463.60 × 1,123.82
  4. Step 4: Simplify right side
    1,643.03x = 2,768,642.95
  5. Step 5: Solve for x
    x = 2,768,642.95/1,643.03
  6. Step 6: Final answer
    x = 1,685.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.