Home / 4,430.40-6,643.92-1,309.44

Finding the Fourth Proportional to 4,430.40, 6,643.92 and 1,309.44

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Solution

The fourth proportional to 4,430.40, 6,643.92 and 1,309.44 is: 1,963.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.40 : 6,643.92 = 1,309.44 : x
  2. Step 2: Convert to fraction form
    4,430.40/6,643.92 = 1,309.44/x
  3. Step 3: Cross multiply
    4,430.40x = 6,643.92 × 1,309.44
  4. Step 4: Simplify right side
    4,430.40x = 8,699,814.60
  5. Step 5: Solve for x
    x = 8,699,814.60/4,430.40
  6. Step 6: Final answer
    x = 1,963.66

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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.