Home / 2,864.81-3,953.44-1,622.81

Finding the Fourth Proportional to 2,864.81, 3,953.44 and 1,622.81

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Solution

The fourth proportional to 2,864.81, 3,953.44 and 1,622.81 is: 2,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.81 : 3,953.44 = 1,622.81 : x
  2. Step 2: Convert to fraction form
    2,864.81/3,953.44 = 1,622.81/x
  3. Step 3: Cross multiply
    2,864.81x = 3,953.44 × 1,622.81
  4. Step 4: Simplify right side
    2,864.81x = 6,415,681.97
  5. Step 5: Solve for x
    x = 6,415,681.97/2,864.81
  6. Step 6: Final answer
    x = 2,239.48

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1.5x scale

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.