Home / 1,520.18-2,268.64-1,356.14

Finding the Fourth Proportional to 1,520.18, 2,268.64 and 1,356.14

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Solution

The fourth proportional to 1,520.18, 2,268.64 and 1,356.14 is: 2,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.18 : 2,268.64 = 1,356.14 : x
  2. Step 2: Convert to fraction form
    1,520.18/2,268.64 = 1,356.14/x
  3. Step 3: Cross multiply
    1,520.18x = 2,268.64 × 1,356.14
  4. Step 4: Simplify right side
    1,520.18x = 3,076,593.45
  5. Step 5: Solve for x
    x = 3,076,593.45/1,520.18
  6. Step 6: Final answer
    x = 2,023.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.