Home / 4,948.30-7,415.70-3,187.90

Finding the Fourth Proportional to 4,948.30, 7,415.70 and 3,187.90

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Solution

The fourth proportional to 4,948.30, 7,415.70 and 3,187.90 is: 4,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.30 : 7,415.70 = 3,187.90 : x
  2. Step 2: Convert to fraction form
    4,948.30/7,415.70 = 3,187.90/x
  3. Step 3: Cross multiply
    4,948.30x = 7,415.70 × 3,187.90
  4. Step 4: Simplify right side
    4,948.30x = 23,640,510.03
  5. Step 5: Solve for x
    x = 23,640,510.03/4,948.30
  6. Step 6: Final answer
    x = 4,777.50

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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.