Home / 3,903.02-5,386.18-2,310.78

Finding the Fourth Proportional to 3,903.02, 5,386.18 and 2,310.78

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Solution

The fourth proportional to 3,903.02, 5,386.18 and 2,310.78 is: 3,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.02 : 5,386.18 = 2,310.78 : x
  2. Step 2: Convert to fraction form
    3,903.02/5,386.18 = 2,310.78/x
  3. Step 3: Cross multiply
    3,903.02x = 5,386.18 × 2,310.78
  4. Step 4: Simplify right side
    3,903.02x = 12,446,277.02
  5. Step 5: Solve for x
    x = 12,446,277.02/3,903.02
  6. Step 6: Final answer
    x = 3,188.88

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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.