Home / 3,010.17-4,515.35-818.95

Finding the Fourth Proportional to 3,010.17, 4,515.35 and 818.95

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Solution

The fourth proportional to 3,010.17, 4,515.35 and 818.95 is: 1,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.17 : 4,515.35 = 818.95 : x
  2. Step 2: Convert to fraction form
    3,010.17/4,515.35 = 818.95/x
  3. Step 3: Cross multiply
    3,010.17x = 4,515.35 × 818.95
  4. Step 4: Simplify right side
    3,010.17x = 3,697,845.88
  5. Step 5: Solve for x
    x = 3,697,845.88/3,010.17
  6. Step 6: Final answer
    x = 1,228.45

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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.