Home / 2,415.39-3,623.07-1,117.77

Finding the Fourth Proportional to 2,415.39, 3,623.07 and 1,117.77

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Solution

The fourth proportional to 2,415.39, 3,623.07 and 1,117.77 is: 1,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.39 : 3,623.07 = 1,117.77 : x
  2. Step 2: Convert to fraction form
    2,415.39/3,623.07 = 1,117.77/x
  3. Step 3: Cross multiply
    2,415.39x = 3,623.07 × 1,117.77
  4. Step 4: Simplify right side
    2,415.39x = 4,049,758.95
  5. Step 5: Solve for x
    x = 4,049,758.95/2,415.39
  6. Step 6: Final answer
    x = 1,676.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.