Home / 5,376.02-8,066.34-2,780.78

Finding the Fourth Proportional to 5,376.02, 8,066.34 and 2,780.78

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Solution

The fourth proportional to 5,376.02, 8,066.34 and 2,780.78 is: 4,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.02 : 8,066.34 = 2,780.78 : x
  2. Step 2: Convert to fraction form
    5,376.02/8,066.34 = 2,780.78/x
  3. Step 3: Cross multiply
    5,376.02x = 8,066.34 × 2,780.78
  4. Step 4: Simplify right side
    5,376.02x = 22,430,716.95
  5. Step 5: Solve for x
    x = 22,430,716.95/5,376.02
  6. Step 6: Final answer
    x = 4,172.36

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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.