Home / 3,953.10-5,442.48-3,112.32

Finding the Fourth Proportional to 3,953.10, 5,442.48 and 3,112.32

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Solution

The fourth proportional to 3,953.10, 5,442.48 and 3,112.32 is: 4,284.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.10 : 5,442.48 = 3,112.32 : x
  2. Step 2: Convert to fraction form
    3,953.10/5,442.48 = 3,112.32/x
  3. Step 3: Cross multiply
    3,953.10x = 5,442.48 × 3,112.32
  4. Step 4: Simplify right side
    3,953.10x = 16,938,739.35
  5. Step 5: Solve for x
    x = 16,938,739.35/3,953.10
  6. Step 6: Final answer
    x = 4,284.93

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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.