Home / 3,935.37-5,430.75-2,256.74

Finding the Fourth Proportional to 3,935.37, 5,430.75 and 2,256.74

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Solution

The fourth proportional to 3,935.37, 5,430.75 and 2,256.74 is: 3,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.37 : 5,430.75 = 2,256.74 : x
  2. Step 2: Convert to fraction form
    3,935.37/5,430.75 = 2,256.74/x
  3. Step 3: Cross multiply
    3,935.37x = 5,430.75 × 2,256.74
  4. Step 4: Simplify right side
    3,935.37x = 12,255,790.76
  5. Step 5: Solve for x
    x = 12,255,790.76/3,935.37
  6. Step 6: Final answer
    x = 3,114.27

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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.