Home / 4,509.19-6,764.16-1,389.20

Finding the Fourth Proportional to 4,509.19, 6,764.16 and 1,389.20

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Solution

The fourth proportional to 4,509.19, 6,764.16 and 1,389.20 is: 2,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.19 : 6,764.16 = 1,389.20 : x
  2. Step 2: Convert to fraction form
    4,509.19/6,764.16 = 1,389.20/x
  3. Step 3: Cross multiply
    4,509.19x = 6,764.16 × 1,389.20
  4. Step 4: Simplify right side
    4,509.19x = 9,396,772.69
  5. Step 5: Solve for x
    x = 9,396,772.69/4,509.19
  6. Step 6: Final answer
    x = 2,083.91

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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.