Home / 2,327.90-3,211.50-1,972.30

Finding the Fourth Proportional to 2,327.90, 3,211.50 and 1,972.30

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Solution

The fourth proportional to 2,327.90, 3,211.50 and 1,972.30 is: 2,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.90 : 3,211.50 = 1,972.30 : x
  2. Step 2: Convert to fraction form
    2,327.90/3,211.50 = 1,972.30/x
  3. Step 3: Cross multiply
    2,327.90x = 3,211.50 × 1,972.30
  4. Step 4: Simplify right side
    2,327.90x = 6,334,041.45
  5. Step 5: Solve for x
    x = 6,334,041.45/2,327.90
  6. Step 6: Final answer
    x = 2,720.93

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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.