Home / 4,938.35-6,811.16-3,146.15

Finding the Fourth Proportional to 4,938.35, 6,811.16 and 3,146.15

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Solution

The fourth proportional to 4,938.35, 6,811.16 and 3,146.15 is: 4,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.35 : 6,811.16 = 3,146.15 : x
  2. Step 2: Convert to fraction form
    4,938.35/6,811.16 = 3,146.15/x
  3. Step 3: Cross multiply
    4,938.35x = 6,811.16 × 3,146.15
  4. Step 4: Simplify right side
    4,938.35x = 21,428,881.25
  5. Step 5: Solve for x
    x = 21,428,881.25/4,938.35
  6. Step 6: Final answer
    x = 4,339.28

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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.