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Finding the Fourth Proportional to 4,878.66, 7,317.76 and 3,393.50

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Solution

The fourth proportional to 4,878.66, 7,317.76 and 3,393.50 is: 5,090.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.66 : 7,317.76 = 3,393.50 : x
  2. Step 2: Convert to fraction form
    4,878.66/7,317.76 = 3,393.50/x
  3. Step 3: Cross multiply
    4,878.66x = 7,317.76 × 3,393.50
  4. Step 4: Simplify right side
    4,878.66x = 24,832,779.85
  5. Step 5: Solve for x
    x = 24,832,779.85/4,878.66
  6. Step 6: Final answer
    x = 5,090.08

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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.