Home / 5,618.95-8,430.86-3,018.85

Finding the Fourth Proportional to 5,618.95, 8,430.86 and 3,018.85

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Solution

The fourth proportional to 5,618.95, 8,430.86 and 3,018.85 is: 4,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.95 : 8,430.86 = 3,018.85 : x
  2. Step 2: Convert to fraction form
    5,618.95/8,430.86 = 3,018.85/x
  3. Step 3: Cross multiply
    5,618.95x = 8,430.86 × 3,018.85
  4. Step 4: Simplify right side
    5,618.95x = 25,451,488.18
  5. Step 5: Solve for x
    x = 25,451,488.18/5,618.95
  6. Step 6: Final answer
    x = 4,529.58

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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.