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Finding the Fourth Proportional to 8,698.79, 13,048.88 and 2,458.85

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Solution

The fourth proportional to 8,698.79, 13,048.88 and 2,458.85 is: 3,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.79 : 13,048.88 = 2,458.85 : x
  2. Step 2: Convert to fraction form
    8,698.79/13,048.88 = 2,458.85/x
  3. Step 3: Cross multiply
    8,698.79x = 13,048.88 × 2,458.85
  4. Step 4: Simplify right side
    8,698.79x = 32,085,173.34
  5. Step 5: Solve for x
    x = 32,085,173.34/8,698.79
  6. Step 6: Final answer
    x = 3,688.47

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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.