Home / 4,340.52-6,511.32-1,220.40

Finding the Fourth Proportional to 4,340.52, 6,511.32 and 1,220.40

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Solution

The fourth proportional to 4,340.52, 6,511.32 and 1,220.40 is: 1,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.52 : 6,511.32 = 1,220.40 : x
  2. Step 2: Convert to fraction form
    4,340.52/6,511.32 = 1,220.40/x
  3. Step 3: Cross multiply
    4,340.52x = 6,511.32 × 1,220.40
  4. Step 4: Simplify right side
    4,340.52x = 7,946,414.93
  5. Step 5: Solve for x
    x = 7,946,414.93/4,340.52
  6. Step 6: Final answer
    x = 1,830.75

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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.