Home / 3,000.15-4,478.31-2,783.34

Finding the Fourth Proportional to 3,000.15, 4,478.31 and 2,783.34

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Solution

The fourth proportional to 3,000.15, 4,478.31 and 2,783.34 is: 4,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.15 : 4,478.31 = 2,783.34 : x
  2. Step 2: Convert to fraction form
    3,000.15/4,478.31 = 2,783.34/x
  3. Step 3: Cross multiply
    3,000.15x = 4,478.31 × 2,783.34
  4. Step 4: Simplify right side
    3,000.15x = 12,464,659.36
  5. Step 5: Solve for x
    x = 12,464,659.36/3,000.15
  6. Step 6: Final answer
    x = 4,154.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.