Home / 2,811.30-4,217.40-962.63

Finding the Fourth Proportional to 2,811.30, 4,217.40 and 962.63

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Solution

The fourth proportional to 2,811.30, 4,217.40 and 962.63 is: 1,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.30 : 4,217.40 = 962.63 : x
  2. Step 2: Convert to fraction form
    2,811.30/4,217.40 = 962.63/x
  3. Step 3: Cross multiply
    2,811.30x = 4,217.40 × 962.63
  4. Step 4: Simplify right side
    2,811.30x = 4,059,774.68
  5. Step 5: Solve for x
    x = 4,059,774.68/2,811.30
  6. Step 6: Final answer
    x = 1,444.09

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1.5x scale

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.