Home / 3,953.81-5,456.23-2,275.55

Finding the Fourth Proportional to 3,953.81, 5,456.23 and 2,275.55

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Solution

The fourth proportional to 3,953.81, 5,456.23 and 2,275.55 is: 3,140.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.81 : 5,456.23 = 2,275.55 : x
  2. Step 2: Convert to fraction form
    3,953.81/5,456.23 = 2,275.55/x
  3. Step 3: Cross multiply
    3,953.81x = 5,456.23 × 2,275.55
  4. Step 4: Simplify right side
    3,953.81x = 12,415,924.18
  5. Step 5: Solve for x
    x = 12,415,924.18/3,953.81
  6. Step 6: Final answer
    x = 3,140.24

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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.