Home / 4,391.86-6,587.43-1,313.86

Finding the Fourth Proportional to 4,391.86, 6,587.43 and 1,313.86

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Solution

The fourth proportional to 4,391.86, 6,587.43 and 1,313.86 is: 1,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.86 : 6,587.43 = 1,313.86 : x
  2. Step 2: Convert to fraction form
    4,391.86/6,587.43 = 1,313.86/x
  3. Step 3: Cross multiply
    4,391.86x = 6,587.43 × 1,313.86
  4. Step 4: Simplify right side
    4,391.86x = 8,654,960.78
  5. Step 5: Solve for x
    x = 8,654,960.78/4,391.86
  6. Step 6: Final answer
    x = 1,970.68

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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.