Home / 4,078.85-5,628.48-2,400.32

Finding the Fourth Proportional to 4,078.85, 5,628.48 and 2,400.32

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Solution

The fourth proportional to 4,078.85, 5,628.48 and 2,400.32 is: 3,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.85 : 5,628.48 = 2,400.32 : x
  2. Step 2: Convert to fraction form
    4,078.85/5,628.48 = 2,400.32/x
  3. Step 3: Cross multiply
    4,078.85x = 5,628.48 × 2,400.32
  4. Step 4: Simplify right side
    4,078.85x = 13,510,124.97
  5. Step 5: Solve for x
    x = 13,510,124.97/4,078.85
  6. Step 6: Final answer
    x = 3,312.24

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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.