Home / 1,603.80-2,213.28-895.59

Finding the Fourth Proportional to 1,603.80, 2,213.28 and 895.59

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Solution

The fourth proportional to 1,603.80, 2,213.28 and 895.59 is: 1,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.80 : 2,213.28 = 895.59 : x
  2. Step 2: Convert to fraction form
    1,603.80/2,213.28 = 895.59/x
  3. Step 3: Cross multiply
    1,603.80x = 2,213.28 × 895.59
  4. Step 4: Simplify right side
    1,603.80x = 1,982,191.44
  5. Step 5: Solve for x
    x = 1,982,191.44/1,603.80
  6. Step 6: Final answer
    x = 1,235.93

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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.