Home / 4,901.40-6,765.35-2,912.72

Finding the Fourth Proportional to 4,901.40, 6,765.35 and 2,912.72

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Solution

The fourth proportional to 4,901.40, 6,765.35 and 2,912.72 is: 4,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.40 : 6,765.35 = 2,912.72 : x
  2. Step 2: Convert to fraction form
    4,901.40/6,765.35 = 2,912.72/x
  3. Step 3: Cross multiply
    4,901.40x = 6,765.35 × 2,912.72
  4. Step 4: Simplify right side
    4,901.40x = 19,705,521.86
  5. Step 5: Solve for x
    x = 19,705,521.86/4,901.40
  6. Step 6: Final answer
    x = 4,020.39

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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.