Home / 6,430.32-9,644.40-2,919.24

Finding the Fourth Proportional to 6,430.32, 9,644.40 and 2,919.24

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Solution

The fourth proportional to 6,430.32, 9,644.40 and 2,919.24 is: 4,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.32 : 9,644.40 = 2,919.24 : x
  2. Step 2: Convert to fraction form
    6,430.32/9,644.40 = 2,919.24/x
  3. Step 3: Cross multiply
    6,430.32x = 9,644.40 × 2,919.24
  4. Step 4: Simplify right side
    6,430.32x = 28,154,318.26
  5. Step 5: Solve for x
    x = 28,154,318.26/6,430.32
  6. Step 6: Final answer
    x = 4,378.37

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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.