Home / 2,259.60-3,386.68-1,286.32

Finding the Fourth Proportional to 2,259.60, 3,386.68 and 1,286.32

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Solution

The fourth proportional to 2,259.60, 3,386.68 and 1,286.32 is: 1,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.60 : 3,386.68 = 1,286.32 : x
  2. Step 2: Convert to fraction form
    2,259.60/3,386.68 = 1,286.32/x
  3. Step 3: Cross multiply
    2,259.60x = 3,386.68 × 1,286.32
  4. Step 4: Simplify right side
    2,259.60x = 4,356,354.22
  5. Step 5: Solve for x
    x = 4,356,354.22/2,259.60
  6. Step 6: Final answer
    x = 1,927.93

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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.