Home / 5,678.68-8,518.37-1,783.24

Finding the Fourth Proportional to 5,678.68, 8,518.37 and 1,783.24

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Solution

The fourth proportional to 5,678.68, 8,518.37 and 1,783.24 is: 2,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.68 : 8,518.37 = 1,783.24 : x
  2. Step 2: Convert to fraction form
    5,678.68/8,518.37 = 1,783.24/x
  3. Step 3: Cross multiply
    5,678.68x = 8,518.37 × 1,783.24
  4. Step 4: Simplify right side
    5,678.68x = 15,190,255.53
  5. Step 5: Solve for x
    x = 15,190,255.53/5,678.68
  6. Step 6: Final answer
    x = 2,674.96

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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.