Home / 5,679.32-8,519.86-1,782.84

Finding the Fourth Proportional to 5,679.32, 8,519.86 and 1,782.84

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Solution

The fourth proportional to 5,679.32, 8,519.86 and 1,782.84 is: 2,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.32 : 8,519.86 = 1,782.84 : x
  2. Step 2: Convert to fraction form
    5,679.32/8,519.86 = 1,782.84/x
  3. Step 3: Cross multiply
    5,679.32x = 8,519.86 × 1,782.84
  4. Step 4: Simplify right side
    5,679.32x = 15,189,547.20
  5. Step 5: Solve for x
    x = 15,189,547.20/5,679.32
  6. Step 6: Final answer
    x = 2,674.54

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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.