Home / 5,305.68-7,321.87-2,915.63

Finding the Fourth Proportional to 5,305.68, 7,321.87 and 2,915.63

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Solution

The fourth proportional to 5,305.68, 7,321.87 and 2,915.63 is: 4,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.68 : 7,321.87 = 2,915.63 : x
  2. Step 2: Convert to fraction form
    5,305.68/7,321.87 = 2,915.63/x
  3. Step 3: Cross multiply
    5,305.68x = 7,321.87 × 2,915.63
  4. Step 4: Simplify right side
    5,305.68x = 21,347,827.22
  5. Step 5: Solve for x
    x = 21,347,827.22/5,305.68
  6. Step 6: Final answer
    x = 4,023.58

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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.