Home / 2,803.61-4,220.04-2,380.79

Finding the Fourth Proportional to 2,803.61, 4,220.04 and 2,380.79

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Solution

The fourth proportional to 2,803.61, 4,220.04 and 2,380.79 is: 3,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.61 : 4,220.04 = 2,380.79 : x
  2. Step 2: Convert to fraction form
    2,803.61/4,220.04 = 2,380.79/x
  3. Step 3: Cross multiply
    2,803.61x = 4,220.04 × 2,380.79
  4. Step 4: Simplify right side
    2,803.61x = 10,047,017.13
  5. Step 5: Solve for x
    x = 10,047,017.13/2,803.61
  6. Step 6: Final answer
    x = 3,583.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.