Home / 2,415.50-3,623.25-1,587.79

Finding the Fourth Proportional to 2,415.50, 3,623.25 and 1,587.79

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Solution

The fourth proportional to 2,415.50, 3,623.25 and 1,587.79 is: 2,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.50 : 3,623.25 = 1,587.79 : x
  2. Step 2: Convert to fraction form
    2,415.50/3,623.25 = 1,587.79/x
  3. Step 3: Cross multiply
    2,415.50x = 3,623.25 × 1,587.79
  4. Step 4: Simplify right side
    2,415.50x = 5,752,960.12
  5. Step 5: Solve for x
    x = 5,752,960.12/2,415.50
  6. Step 6: Final answer
    x = 2,381.69

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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.