Home / 4,974.20-7,461.30-4,172.30

Finding the Fourth Proportional to 4,974.20, 7,461.30 and 4,172.30

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Solution

The fourth proportional to 4,974.20, 7,461.30 and 4,172.30 is: 6,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.20 : 7,461.30 = 4,172.30 : x
  2. Step 2: Convert to fraction form
    4,974.20/7,461.30 = 4,172.30/x
  3. Step 3: Cross multiply
    4,974.20x = 7,461.30 × 4,172.30
  4. Step 4: Simplify right side
    4,974.20x = 31,130,781.99
  5. Step 5: Solve for x
    x = 31,130,781.99/4,974.20
  6. Step 6: Final answer
    x = 6,258.45

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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.