Home / 3,200.15-4,407.01-2,748.40

Finding the Fourth Proportional to 3,200.15, 4,407.01 and 2,748.40

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Solution

The fourth proportional to 3,200.15, 4,407.01 and 2,748.40 is: 3,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.15 : 4,407.01 = 2,748.40 : x
  2. Step 2: Convert to fraction form
    3,200.15/4,407.01 = 2,748.40/x
  3. Step 3: Cross multiply
    3,200.15x = 4,407.01 × 2,748.40
  4. Step 4: Simplify right side
    3,200.15x = 12,112,226.28
  5. Step 5: Solve for x
    x = 12,112,226.28/3,200.15
  6. Step 6: Final answer
    x = 3,784.89

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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.