Home / 3,157.16-4,353.44-2,900.79

Finding the Fourth Proportional to 3,157.16, 4,353.44 and 2,900.79

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Solution

The fourth proportional to 3,157.16, 4,353.44 and 2,900.79 is: 3,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.16 : 4,353.44 = 2,900.79 : x
  2. Step 2: Convert to fraction form
    3,157.16/4,353.44 = 2,900.79/x
  3. Step 3: Cross multiply
    3,157.16x = 4,353.44 × 2,900.79
  4. Step 4: Simplify right side
    3,157.16x = 12,628,400.71
  5. Step 5: Solve for x
    x = 12,628,400.71/3,157.16
  6. Step 6: Final answer
    x = 3,999.93

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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.