Home / 5,208.39-7,812.57-2,130.39

Finding the Fourth Proportional to 5,208.39, 7,812.57 and 2,130.39

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Solution

The fourth proportional to 5,208.39, 7,812.57 and 2,130.39 is: 3,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.39 : 7,812.57 = 2,130.39 : x
  2. Step 2: Convert to fraction form
    5,208.39/7,812.57 = 2,130.39/x
  3. Step 3: Cross multiply
    5,208.39x = 7,812.57 × 2,130.39
  4. Step 4: Simplify right side
    5,208.39x = 16,643,821.00
  5. Step 5: Solve for x
    x = 16,643,821.00/5,208.39
  6. Step 6: Final answer
    x = 3,195.58

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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.