Home / 4,287.94-6,430.40-2,908.86

Finding the Fourth Proportional to 4,287.94, 6,430.40 and 2,908.86

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Solution

The fourth proportional to 4,287.94, 6,430.40 and 2,908.86 is: 4,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.94 : 6,430.40 = 2,908.86 : x
  2. Step 2: Convert to fraction form
    4,287.94/6,430.40 = 2,908.86/x
  3. Step 3: Cross multiply
    4,287.94x = 6,430.40 × 2,908.86
  4. Step 4: Simplify right side
    4,287.94x = 18,705,133.34
  5. Step 5: Solve for x
    x = 18,705,133.34/4,287.94
  6. Step 6: Final answer
    x = 4,362.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.