Home / 2,268.19-3,130.64-1,384.74

Finding the Fourth Proportional to 2,268.19, 3,130.64 and 1,384.74

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Solution

The fourth proportional to 2,268.19, 3,130.64 and 1,384.74 is: 1,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.19 : 3,130.64 = 1,384.74 : x
  2. Step 2: Convert to fraction form
    2,268.19/3,130.64 = 1,384.74/x
  3. Step 3: Cross multiply
    2,268.19x = 3,130.64 × 1,384.74
  4. Step 4: Simplify right side
    2,268.19x = 4,335,125.90
  5. Step 5: Solve for x
    x = 4,335,125.90/2,268.19
  6. Step 6: Final answer
    x = 1,911.27

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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.