Home / 5,210.36-7,190.52-2,972.06

Finding the Fourth Proportional to 5,210.36, 7,190.52 and 2,972.06

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Solution

The fourth proportional to 5,210.36, 7,190.52 and 2,972.06 is: 4,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.36 : 7,190.52 = 2,972.06 : x
  2. Step 2: Convert to fraction form
    5,210.36/7,190.52 = 2,972.06/x
  3. Step 3: Cross multiply
    5,210.36x = 7,190.52 × 2,972.06
  4. Step 4: Simplify right side
    5,210.36x = 21,370,656.87
  5. Step 5: Solve for x
    x = 21,370,656.87/5,210.36
  6. Step 6: Final answer
    x = 4,101.57

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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.