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Finding the Fourth Proportional to 2,384.64, 3,289.28 and 1,499.68

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Solution

The fourth proportional to 2,384.64, 3,289.28 and 1,499.68 is: 2,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.64 : 3,289.28 = 1,499.68 : x
  2. Step 2: Convert to fraction form
    2,384.64/3,289.28 = 1,499.68/x
  3. Step 3: Cross multiply
    2,384.64x = 3,289.28 × 1,499.68
  4. Step 4: Simplify right side
    2,384.64x = 4,932,867.43
  5. Step 5: Solve for x
    x = 4,932,867.43/2,384.64
  6. Step 6: Final answer
    x = 2,068.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.