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Finding the Fourth Proportional to 5,340.60, 8,011.60 and 1,643.08

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Solution

The fourth proportional to 5,340.60, 8,011.60 and 1,643.08 is: 2,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.60 : 8,011.60 = 1,643.08 : x
  2. Step 2: Convert to fraction form
    5,340.60/8,011.60 = 1,643.08/x
  3. Step 3: Cross multiply
    5,340.60x = 8,011.60 × 1,643.08
  4. Step 4: Simplify right side
    5,340.60x = 13,163,699.73
  5. Step 5: Solve for x
    x = 13,163,699.73/5,340.60
  6. Step 6: Final answer
    x = 2,464.84

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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.