Home / 2,803.04-3,865.68-1,755.20

Finding the Fourth Proportional to 2,803.04, 3,865.68 and 1,755.20

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Solution

The fourth proportional to 2,803.04, 3,865.68 and 1,755.20 is: 2,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.04 : 3,865.68 = 1,755.20 : x
  2. Step 2: Convert to fraction form
    2,803.04/3,865.68 = 1,755.20/x
  3. Step 3: Cross multiply
    2,803.04x = 3,865.68 × 1,755.20
  4. Step 4: Simplify right side
    2,803.04x = 6,785,041.54
  5. Step 5: Solve for x
    x = 6,785,041.54/2,803.04
  6. Step 6: Final answer
    x = 2,420.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.