Home / 3,953.84-5,456.14-2,275.50

Finding the Fourth Proportional to 3,953.84, 5,456.14 and 2,275.50

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Solution

The fourth proportional to 3,953.84, 5,456.14 and 2,275.50 is: 3,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.84 : 5,456.14 = 2,275.50 : x
  2. Step 2: Convert to fraction form
    3,953.84/5,456.14 = 2,275.50/x
  3. Step 3: Cross multiply
    3,953.84x = 5,456.14 × 2,275.50
  4. Step 4: Simplify right side
    3,953.84x = 12,415,446.57
  5. Step 5: Solve for x
    x = 12,415,446.57/3,953.84
  6. Step 6: Final answer
    x = 3,140.10

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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.