Home / 2,172.50-3,258.75-529.03

Finding the Fourth Proportional to 2,172.50, 3,258.75 and 529.03

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Solution

The fourth proportional to 2,172.50, 3,258.75 and 529.03 is: 793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.50 : 3,258.75 = 529.03 : x
  2. Step 2: Convert to fraction form
    2,172.50/3,258.75 = 529.03/x
  3. Step 3: Cross multiply
    2,172.50x = 3,258.75 × 529.03
  4. Step 4: Simplify right side
    2,172.50x = 1,723,976.51
  5. Step 5: Solve for x
    x = 1,723,976.51/2,172.50
  6. Step 6: Final answer
    x = 793.55

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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.