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Finding the Fourth Proportional to 1,350.08, 2,025.12 and 619.64

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Solution

The fourth proportional to 1,350.08, 2,025.12 and 619.64 is: 929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.08 : 2,025.12 = 619.64 : x
  2. Step 2: Convert to fraction form
    1,350.08/2,025.12 = 619.64/x
  3. Step 3: Cross multiply
    1,350.08x = 2,025.12 × 619.64
  4. Step 4: Simplify right side
    1,350.08x = 1,254,845.36
  5. Step 5: Solve for x
    x = 1,254,845.36/1,350.08
  6. Step 6: Final answer
    x = 929.46

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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.