Home / 4,390.05-6,581.97-2,197.20

Finding the Fourth Proportional to 4,390.05, 6,581.97 and 2,197.20

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Solution

The fourth proportional to 4,390.05, 6,581.97 and 2,197.20 is: 3,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.05 : 6,581.97 = 2,197.20 : x
  2. Step 2: Convert to fraction form
    4,390.05/6,581.97 = 2,197.20/x
  3. Step 3: Cross multiply
    4,390.05x = 6,581.97 × 2,197.20
  4. Step 4: Simplify right side
    4,390.05x = 14,461,904.48
  5. Step 5: Solve for x
    x = 14,461,904.48/4,390.05
  6. Step 6: Final answer
    x = 3,294.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.