Home / 3,478.17-4,800.27-1,986.30

Finding the Fourth Proportional to 3,478.17, 4,800.27 and 1,986.30

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Solution

The fourth proportional to 3,478.17, 4,800.27 and 1,986.30 is: 2,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.17 : 4,800.27 = 1,986.30 : x
  2. Step 2: Convert to fraction form
    3,478.17/4,800.27 = 1,986.30/x
  3. Step 3: Cross multiply
    3,478.17x = 4,800.27 × 1,986.30
  4. Step 4: Simplify right side
    3,478.17x = 9,534,776.30
  5. Step 5: Solve for x
    x = 9,534,776.30/3,478.17
  6. Step 6: Final answer
    x = 2,741.32

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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.