Home / 7,218.90-9,962.25-4,236.89

Finding the Fourth Proportional to 7,218.90, 9,962.25 and 4,236.89

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Solution

The fourth proportional to 7,218.90, 9,962.25 and 4,236.89 is: 5,847.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.90 : 9,962.25 = 4,236.89 : x
  2. Step 2: Convert to fraction form
    7,218.90/9,962.25 = 4,236.89/x
  3. Step 3: Cross multiply
    7,218.90x = 9,962.25 × 4,236.89
  4. Step 4: Simplify right side
    7,218.90x = 42,208,891.70
  5. Step 5: Solve for x
    x = 42,208,891.70/7,218.90
  6. Step 6: Final answer
    x = 5,847.00

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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.