Home / 3,953.18-5,455.32-2,555.96

Finding the Fourth Proportional to 3,953.18, 5,455.32 and 2,555.96

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Solution

The fourth proportional to 3,953.18, 5,455.32 and 2,555.96 is: 3,527.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.18 : 5,455.32 = 2,555.96 : x
  2. Step 2: Convert to fraction form
    3,953.18/5,455.32 = 2,555.96/x
  3. Step 3: Cross multiply
    3,953.18x = 5,455.32 × 2,555.96
  4. Step 4: Simplify right side
    3,953.18x = 13,943,579.71
  5. Step 5: Solve for x
    x = 13,943,579.71/3,953.18
  6. Step 6: Final answer
    x = 3,527.18

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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.