Home / 4,278.15-6,416.79-2,900.34

Finding the Fourth Proportional to 4,278.15, 6,416.79 and 2,900.34

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Solution

The fourth proportional to 4,278.15, 6,416.79 and 2,900.34 is: 4,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.15 : 6,416.79 = 2,900.34 : x
  2. Step 2: Convert to fraction form
    4,278.15/6,416.79 = 2,900.34/x
  3. Step 3: Cross multiply
    4,278.15x = 6,416.79 × 2,900.34
  4. Step 4: Simplify right side
    4,278.15x = 18,610,872.71
  5. Step 5: Solve for x
    x = 18,610,872.71/4,278.15
  6. Step 6: Final answer
    x = 4,350.22

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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.