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Finding the Fourth Proportional to 6,263.60, 9,391.80 and 1,880.40

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Solution

The fourth proportional to 6,263.60, 9,391.80 and 1,880.40 is: 2,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.60 : 9,391.80 = 1,880.40 : x
  2. Step 2: Convert to fraction form
    6,263.60/9,391.80 = 1,880.40/x
  3. Step 3: Cross multiply
    6,263.60x = 9,391.80 × 1,880.40
  4. Step 4: Simplify right side
    6,263.60x = 17,660,340.72
  5. Step 5: Solve for x
    x = 17,660,340.72/6,263.60
  6. Step 6: Final answer
    x = 2,819.52

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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.