Home / 5,209.95-7,189.90-2,852.09

Finding the Fourth Proportional to 5,209.95, 7,189.90 and 2,852.09

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Solution

The fourth proportional to 5,209.95, 7,189.90 and 2,852.09 is: 3,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.95 : 7,189.90 = 2,852.09 : x
  2. Step 2: Convert to fraction form
    5,209.95/7,189.90 = 2,852.09/x
  3. Step 3: Cross multiply
    5,209.95x = 7,189.90 × 2,852.09
  4. Step 4: Simplify right side
    5,209.95x = 20,506,241.89
  5. Step 5: Solve for x
    x = 20,506,241.89/5,209.95
  6. Step 6: Final answer
    x = 3,935.98

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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.