Home / 4,430.99-6,647.78-1,311.08

Finding the Fourth Proportional to 4,430.99, 6,647.78 and 1,311.08

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Solution

The fourth proportional to 4,430.99, 6,647.78 and 1,311.08 is: 1,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.99 : 6,647.78 = 1,311.08 : x
  2. Step 2: Convert to fraction form
    4,430.99/6,647.78 = 1,311.08/x
  3. Step 3: Cross multiply
    4,430.99x = 6,647.78 × 1,311.08
  4. Step 4: Simplify right side
    4,430.99x = 8,715,745.26
  5. Step 5: Solve for x
    x = 8,715,745.26/4,430.99
  6. Step 6: Final answer
    x = 1,967.00

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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.