Home / 1,603.03-2,211.39-1,248.32

Finding the Fourth Proportional to 1,603.03, 2,211.39 and 1,248.32

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Solution

The fourth proportional to 1,603.03, 2,211.39 and 1,248.32 is: 1,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.03 : 2,211.39 = 1,248.32 : x
  2. Step 2: Convert to fraction form
    1,603.03/2,211.39 = 1,248.32/x
  3. Step 3: Cross multiply
    1,603.03x = 2,211.39 × 1,248.32
  4. Step 4: Simplify right side
    1,603.03x = 2,760,505.07
  5. Step 5: Solve for x
    x = 2,760,505.07/1,603.03
  6. Step 6: Final answer
    x = 1,722.06

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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.