Home / 4,172.84-6,259.07-1,399.30

Finding the Fourth Proportional to 4,172.84, 6,259.07 and 1,399.30

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Solution

The fourth proportional to 4,172.84, 6,259.07 and 1,399.30 is: 2,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.84 : 6,259.07 = 1,399.30 : x
  2. Step 2: Convert to fraction form
    4,172.84/6,259.07 = 1,399.30/x
  3. Step 3: Cross multiply
    4,172.84x = 6,259.07 × 1,399.30
  4. Step 4: Simplify right side
    4,172.84x = 8,758,322.11
  5. Step 5: Solve for x
    x = 8,758,322.11/4,172.84
  6. Step 6: Final answer
    x = 2,098.89

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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.