Home / 4,341.76-6,511.39-1,221.55

Finding the Fourth Proportional to 4,341.76, 6,511.39 and 1,221.55

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Solution

The fourth proportional to 4,341.76, 6,511.39 and 1,221.55 is: 1,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,341.76 : 6,511.39 = 1,221.55 : x
  2. Step 2: Convert to fraction form
    4,341.76/6,511.39 = 1,221.55/x
  3. Step 3: Cross multiply
    4,341.76x = 6,511.39 × 1,221.55
  4. Step 4: Simplify right side
    4,341.76x = 7,953,988.45
  5. Step 5: Solve for x
    x = 7,953,988.45/4,341.76
  6. Step 6: Final answer
    x = 1,831.97

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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.