Home / 1,603.20-2,212.16-904.44

Finding the Fourth Proportional to 1,603.20, 2,212.16 and 904.44

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Solution

The fourth proportional to 1,603.20, 2,212.16 and 904.44 is: 1,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.20 : 2,212.16 = 904.44 : x
  2. Step 2: Convert to fraction form
    1,603.20/2,212.16 = 904.44/x
  3. Step 3: Cross multiply
    1,603.20x = 2,212.16 × 904.44
  4. Step 4: Simplify right side
    1,603.20x = 2,000,765.99
  5. Step 5: Solve for x
    x = 2,000,765.99/1,603.20
  6. Step 6: Final answer
    x = 1,247.98

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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.