Home / 7,144.74-9,860.40-4,001.94

Finding the Fourth Proportional to 7,144.74, 9,860.40 and 4,001.94

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Solution

The fourth proportional to 7,144.74, 9,860.40 and 4,001.94 is: 5,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.74 : 9,860.40 = 4,001.94 : x
  2. Step 2: Convert to fraction form
    7,144.74/9,860.40 = 4,001.94/x
  3. Step 3: Cross multiply
    7,144.74x = 9,860.40 × 4,001.94
  4. Step 4: Simplify right side
    7,144.74x = 39,460,729.18
  5. Step 5: Solve for x
    x = 39,460,729.18/7,144.74
  6. Step 6: Final answer
    x = 5,523.05

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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.