Home / 5,589.64-8,378.58-1,888.36

Finding the Fourth Proportional to 5,589.64, 8,378.58 and 1,888.36

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Solution

The fourth proportional to 5,589.64, 8,378.58 and 1,888.36 is: 2,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.64 : 8,378.58 = 1,888.36 : x
  2. Step 2: Convert to fraction form
    5,589.64/8,378.58 = 1,888.36/x
  3. Step 3: Cross multiply
    5,589.64x = 8,378.58 × 1,888.36
  4. Step 4: Simplify right side
    5,589.64x = 15,821,775.33
  5. Step 5: Solve for x
    x = 15,821,775.33/5,589.64
  6. Step 6: Final answer
    x = 2,830.55

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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.