Home / 3,114.72-4,674.24-1,384.32

Finding the Fourth Proportional to 3,114.72, 4,674.24 and 1,384.32

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Solution

The fourth proportional to 3,114.72, 4,674.24 and 1,384.32 is: 2,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.72 : 4,674.24 = 1,384.32 : x
  2. Step 2: Convert to fraction form
    3,114.72/4,674.24 = 1,384.32/x
  3. Step 3: Cross multiply
    3,114.72x = 4,674.24 × 1,384.32
  4. Step 4: Simplify right side
    3,114.72x = 6,470,643.92
  5. Step 5: Solve for x
    x = 6,470,643.92/3,114.72
  6. Step 6: Final answer
    x = 2,077.44

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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.