Home / 4,912.20-7,368.30-4,256.10

Finding the Fourth Proportional to 4,912.20, 7,368.30 and 4,256.10

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Solution

The fourth proportional to 4,912.20, 7,368.30 and 4,256.10 is: 6,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.20 : 7,368.30 = 4,256.10 : x
  2. Step 2: Convert to fraction form
    4,912.20/7,368.30 = 4,256.10/x
  3. Step 3: Cross multiply
    4,912.20x = 7,368.30 × 4,256.10
  4. Step 4: Simplify right side
    4,912.20x = 31,360,221.63
  5. Step 5: Solve for x
    x = 31,360,221.63/4,912.20
  6. Step 6: Final answer
    x = 6,384.15

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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.