Home / 5,505.95-8,262.40-2,878.20

Finding the Fourth Proportional to 5,505.95, 8,262.40 and 2,878.20

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Solution

The fourth proportional to 5,505.95, 8,262.40 and 2,878.20 is: 4,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.95 : 8,262.40 = 2,878.20 : x
  2. Step 2: Convert to fraction form
    5,505.95/8,262.40 = 2,878.20/x
  3. Step 3: Cross multiply
    5,505.95x = 8,262.40 × 2,878.20
  4. Step 4: Simplify right side
    5,505.95x = 23,780,839.68
  5. Step 5: Solve for x
    x = 23,780,839.68/5,505.95
  6. Step 6: Final answer
    x = 4,319.12

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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.