Home / 1,303.20-1,961.88-1,124.64

Finding the Fourth Proportional to 1,303.20, 1,961.88 and 1,124.64

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Solution

The fourth proportional to 1,303.20, 1,961.88 and 1,124.64 is: 1,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.20 : 1,961.88 = 1,124.64 : x
  2. Step 2: Convert to fraction form
    1,303.20/1,961.88 = 1,124.64/x
  3. Step 3: Cross multiply
    1,303.20x = 1,961.88 × 1,124.64
  4. Step 4: Simplify right side
    1,303.20x = 2,206,408.72
  5. Step 5: Solve for x
    x = 2,206,408.72/1,303.20
  6. Step 6: Final answer
    x = 1,693.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.