Home / 4,391.91-6,581.63-1,615.79

Finding the Fourth Proportional to 4,391.91, 6,581.63 and 1,615.79

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Solution

The fourth proportional to 4,391.91, 6,581.63 and 1,615.79 is: 2,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.91 : 6,581.63 = 1,615.79 : x
  2. Step 2: Convert to fraction form
    4,391.91/6,581.63 = 1,615.79/x
  3. Step 3: Cross multiply
    4,391.91x = 6,581.63 × 1,615.79
  4. Step 4: Simplify right side
    4,391.91x = 10,634,490.95
  5. Step 5: Solve for x
    x = 10,634,490.95/4,391.91
  6. Step 6: Final answer
    x = 2,421.38

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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.