Home / 6,445.36-9,667.24-1,828.72

Finding the Fourth Proportional to 6,445.36, 9,667.24 and 1,828.72

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Solution

The fourth proportional to 6,445.36, 9,667.24 and 1,828.72 is: 2,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.36 : 9,667.24 = 1,828.72 : x
  2. Step 2: Convert to fraction form
    6,445.36/9,667.24 = 1,828.72/x
  3. Step 3: Cross multiply
    6,445.36x = 9,667.24 × 1,828.72
  4. Step 4: Simplify right side
    6,445.36x = 17,678,675.13
  5. Step 5: Solve for x
    x = 17,678,675.13/6,445.36
  6. Step 6: Final answer
    x = 2,742.85

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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.