Home / 5,451.86-8,176.88-1,555.32

Finding the Fourth Proportional to 5,451.86, 8,176.88 and 1,555.32

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Solution

The fourth proportional to 5,451.86, 8,176.88 and 1,555.32 is: 2,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.86 : 8,176.88 = 1,555.32 : x
  2. Step 2: Convert to fraction form
    5,451.86/8,176.88 = 1,555.32/x
  3. Step 3: Cross multiply
    5,451.86x = 8,176.88 × 1,555.32
  4. Step 4: Simplify right side
    5,451.86x = 12,717,665.00
  5. Step 5: Solve for x
    x = 12,717,665.00/5,451.86
  6. Step 6: Final answer
    x = 2,332.72

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Double scale
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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.