Home / 5,439.78-7,505.64-3,314.70

Finding the Fourth Proportional to 5,439.78, 7,505.64 and 3,314.70

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Solution

The fourth proportional to 5,439.78, 7,505.64 and 3,314.70 is: 4,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.78 : 7,505.64 = 3,314.70 : x
  2. Step 2: Convert to fraction form
    5,439.78/7,505.64 = 3,314.70/x
  3. Step 3: Cross multiply
    5,439.78x = 7,505.64 × 3,314.70
  4. Step 4: Simplify right side
    5,439.78x = 24,878,944.91
  5. Step 5: Solve for x
    x = 24,878,944.91/5,439.78
  6. Step 6: Final answer
    x = 4,573.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.