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Finding the Fourth Proportional to 6,323.60, 9,485.64 and 1,643.76

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Solution

The fourth proportional to 6,323.60, 9,485.64 and 1,643.76 is: 2,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,323.60 : 9,485.64 = 1,643.76 : x
  2. Step 2: Convert to fraction form
    6,323.60/9,485.64 = 1,643.76/x
  3. Step 3: Cross multiply
    6,323.60x = 9,485.64 × 1,643.76
  4. Step 4: Simplify right side
    6,323.60x = 15,592,115.61
  5. Step 5: Solve for x
    x = 15,592,115.61/6,323.60
  6. Step 6: Final answer
    x = 2,465.70

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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.