Home / 4,878.15-7,317.20-1,591.25

Finding the Fourth Proportional to 4,878.15, 7,317.20 and 1,591.25

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Solution

The fourth proportional to 4,878.15, 7,317.20 and 1,591.25 is: 2,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.15 : 7,317.20 = 1,591.25 : x
  2. Step 2: Convert to fraction form
    4,878.15/7,317.20 = 1,591.25/x
  3. Step 3: Cross multiply
    4,878.15x = 7,317.20 × 1,591.25
  4. Step 4: Simplify right side
    4,878.15x = 11,643,449.96
  5. Step 5: Solve for x
    x = 11,643,449.96/4,878.15
  6. Step 6: Final answer
    x = 2,386.86

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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.