Home / 3,615.87-5,423.74-1,117.09

Finding the Fourth Proportional to 3,615.87, 5,423.74 and 1,117.09

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Solution

The fourth proportional to 3,615.87, 5,423.74 and 1,117.09 is: 1,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.87 : 5,423.74 = 1,117.09 : x
  2. Step 2: Convert to fraction form
    3,615.87/5,423.74 = 1,117.09/x
  3. Step 3: Cross multiply
    3,615.87x = 5,423.74 × 1,117.09
  4. Step 4: Simplify right side
    3,615.87x = 6,058,805.72
  5. Step 5: Solve for x
    x = 6,058,805.72/3,615.87
  6. Step 6: Final answer
    x = 1,675.61

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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.