Home / 2,588.60-3,880.46-1,288.84

Finding the Fourth Proportional to 2,588.60, 3,880.46 and 1,288.84

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Solution

The fourth proportional to 2,588.60, 3,880.46 and 1,288.84 is: 1,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.60 : 3,880.46 = 1,288.84 : x
  2. Step 2: Convert to fraction form
    2,588.60/3,880.46 = 1,288.84/x
  3. Step 3: Cross multiply
    2,588.60x = 3,880.46 × 1,288.84
  4. Step 4: Simplify right side
    2,588.60x = 5,001,292.07
  5. Step 5: Solve for x
    x = 5,001,292.07/2,588.60
  6. Step 6: Final answer
    x = 1,932.05

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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.