Home / 5,678.24-8,518.18-1,518.39

Finding the Fourth Proportional to 5,678.24, 8,518.18 and 1,518.39

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Solution

The fourth proportional to 5,678.24, 8,518.18 and 1,518.39 is: 2,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.24 : 8,518.18 = 1,518.39 : x
  2. Step 2: Convert to fraction form
    5,678.24/8,518.18 = 1,518.39/x
  3. Step 3: Cross multiply
    5,678.24x = 8,518.18 × 1,518.39
  4. Step 4: Simplify right side
    5,678.24x = 12,933,915.53
  5. Step 5: Solve for x
    x = 12,933,915.53/5,678.24
  6. Step 6: Final answer
    x = 2,277.80

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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.