Home / 3,485.28-4,803.12-3,398.88

Finding the Fourth Proportional to 3,485.28, 4,803.12 and 3,398.88

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Solution

The fourth proportional to 3,485.28, 4,803.12 and 3,398.88 is: 4,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.28 : 4,803.12 = 3,398.88 : x
  2. Step 2: Convert to fraction form
    3,485.28/4,803.12 = 3,398.88/x
  3. Step 3: Cross multiply
    3,485.28x = 4,803.12 × 3,398.88
  4. Step 4: Simplify right side
    3,485.28x = 16,325,228.51
  5. Step 5: Solve for x
    x = 16,325,228.51/3,485.28
  6. Step 6: Final answer
    x = 4,684.05

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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.