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Finding the Fourth Proportional to 5,931.47, 8,900.28 and 2,643.80

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Solution

The fourth proportional to 5,931.47, 8,900.28 and 2,643.80 is: 3,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.47 : 8,900.28 = 2,643.80 : x
  2. Step 2: Convert to fraction form
    5,931.47/8,900.28 = 2,643.80/x
  3. Step 3: Cross multiply
    5,931.47x = 8,900.28 × 2,643.80
  4. Step 4: Simplify right side
    5,931.47x = 23,530,515.76
  5. Step 5: Solve for x
    x = 23,530,515.76/5,931.47
  6. Step 6: Final answer
    x = 3,967.07

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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.