Home / 2,807.45-4,203.81-1,818.74

Finding the Fourth Proportional to 2,807.45, 4,203.81 and 1,818.74

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Solution

The fourth proportional to 2,807.45, 4,203.81 and 1,818.74 is: 2,723.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.45 : 4,203.81 = 1,818.74 : x
  2. Step 2: Convert to fraction form
    2,807.45/4,203.81 = 1,818.74/x
  3. Step 3: Cross multiply
    2,807.45x = 4,203.81 × 1,818.74
  4. Step 4: Simplify right side
    2,807.45x = 7,645,616.38
  5. Step 5: Solve for x
    x = 7,645,616.38/2,807.45
  6. Step 6: Final answer
    x = 2,723.34

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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.