Home / 2,984.09-4,472.75-1,520.15

Finding the Fourth Proportional to 2,984.09, 4,472.75 and 1,520.15

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Solution

The fourth proportional to 2,984.09, 4,472.75 and 1,520.15 is: 2,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.09 : 4,472.75 = 1,520.15 : x
  2. Step 2: Convert to fraction form
    2,984.09/4,472.75 = 1,520.15/x
  3. Step 3: Cross multiply
    2,984.09x = 4,472.75 × 1,520.15
  4. Step 4: Simplify right side
    2,984.09x = 6,799,232.35
  5. Step 5: Solve for x
    x = 6,799,232.35/2,984.09
  6. Step 6: Final answer
    x = 2,278.50

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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.