Home / 4,906.89-7,360.33-1,985.20

Finding the Fourth Proportional to 4,906.89, 7,360.33 and 1,985.20

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Solution

The fourth proportional to 4,906.89, 7,360.33 and 1,985.20 is: 2,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.89 : 7,360.33 = 1,985.20 : x
  2. Step 2: Convert to fraction form
    4,906.89/7,360.33 = 1,985.20/x
  3. Step 3: Cross multiply
    4,906.89x = 7,360.33 × 1,985.20
  4. Step 4: Simplify right side
    4,906.89x = 14,611,727.12
  5. Step 5: Solve for x
    x = 14,611,727.12/4,906.89
  6. Step 6: Final answer
    x = 2,977.80

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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.