Home / 7,161.81-10,730.85-2,776.86

Finding the Fourth Proportional to 7,161.81, 10,730.85 and 2,776.86

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Solution

The fourth proportional to 7,161.81, 10,730.85 and 2,776.86 is: 4,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.81 : 10,730.85 = 2,776.86 : x
  2. Step 2: Convert to fraction form
    7,161.81/10,730.85 = 2,776.86/x
  3. Step 3: Cross multiply
    7,161.81x = 10,730.85 × 2,776.86
  4. Step 4: Simplify right side
    7,161.81x = 29,798,068.13
  5. Step 5: Solve for x
    x = 29,798,068.13/7,161.81
  6. Step 6: Final answer
    x = 4,160.69

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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.