Home / 2,803.86-4,220.40-2,381.04

Finding the Fourth Proportional to 2,803.86, 4,220.40 and 2,381.04

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Solution

The fourth proportional to 2,803.86, 4,220.40 and 2,381.04 is: 3,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.86 : 4,220.40 = 2,381.04 : x
  2. Step 2: Convert to fraction form
    2,803.86/4,220.40 = 2,381.04/x
  3. Step 3: Cross multiply
    2,803.86x = 4,220.40 × 2,381.04
  4. Step 4: Simplify right side
    2,803.86x = 10,048,941.22
  5. Step 5: Solve for x
    x = 10,048,941.22/2,803.86
  6. Step 6: Final answer
    x = 3,583.97

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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.