Home / 5,082.21-7,011.23-2,985.39

Finding the Fourth Proportional to 5,082.21, 7,011.23 and 2,985.39

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Solution

The fourth proportional to 5,082.21, 7,011.23 and 2,985.39 is: 4,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,082.21 : 7,011.23 = 2,985.39 : x
  2. Step 2: Convert to fraction form
    5,082.21/7,011.23 = 2,985.39/x
  3. Step 3: Cross multiply
    5,082.21x = 7,011.23 × 2,985.39
  4. Step 4: Simplify right side
    5,082.21x = 20,931,241.00
  5. Step 5: Solve for x
    x = 20,931,241.00/5,082.21
  6. Step 6: Final answer
    x = 4,118.53

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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.