Home / 2,864.46-3,953.64-1,669.20

Finding the Fourth Proportional to 2,864.46, 3,953.64 and 1,669.20

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Solution

The fourth proportional to 2,864.46, 3,953.64 and 1,669.20 is: 2,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.46 : 3,953.64 = 1,669.20 : x
  2. Step 2: Convert to fraction form
    2,864.46/3,953.64 = 1,669.20/x
  3. Step 3: Cross multiply
    2,864.46x = 3,953.64 × 1,669.20
  4. Step 4: Simplify right side
    2,864.46x = 6,599,415.89
  5. Step 5: Solve for x
    x = 6,599,415.89/2,864.46
  6. Step 6: Final answer
    x = 2,303.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.