Home / 4,176.86-6,256.77-1,978.92

Finding the Fourth Proportional to 4,176.86, 6,256.77 and 1,978.92

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Solution

The fourth proportional to 4,176.86, 6,256.77 and 1,978.92 is: 2,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176.86 : 6,256.77 = 1,978.92 : x
  2. Step 2: Convert to fraction form
    4,176.86/6,256.77 = 1,978.92/x
  3. Step 3: Cross multiply
    4,176.86x = 6,256.77 × 1,978.92
  4. Step 4: Simplify right side
    4,176.86x = 12,381,647.29
  5. Step 5: Solve for x
    x = 12,381,647.29/4,176.86
  6. Step 6: Final answer
    x = 2,964.35

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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.