Home / 4,078.12-5,627.16-2,309.32

Finding the Fourth Proportional to 4,078.12, 5,627.16 and 2,309.32

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Solution

The fourth proportional to 4,078.12, 5,627.16 and 2,309.32 is: 3,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.12 : 5,627.16 = 2,309.32 : x
  2. Step 2: Convert to fraction form
    4,078.12/5,627.16 = 2,309.32/x
  3. Step 3: Cross multiply
    4,078.12x = 5,627.16 × 2,309.32
  4. Step 4: Simplify right side
    4,078.12x = 12,994,913.13
  5. Step 5: Solve for x
    x = 12,994,913.13/4,078.12
  6. Step 6: Final answer
    x = 3,186.50

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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.