Home / 5,208.36-7,187.76-2,970.06

Finding the Fourth Proportional to 5,208.36, 7,187.76 and 2,970.06

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Solution

The fourth proportional to 5,208.36, 7,187.76 and 2,970.06 is: 4,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.36 : 7,187.76 = 2,970.06 : x
  2. Step 2: Convert to fraction form
    5,208.36/7,187.76 = 2,970.06/x
  3. Step 3: Cross multiply
    5,208.36x = 7,187.76 × 2,970.06
  4. Step 4: Simplify right side
    5,208.36x = 21,348,078.47
  5. Step 5: Solve for x
    x = 21,348,078.47/5,208.36
  6. Step 6: Final answer
    x = 4,098.81

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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.