Home / 4,430.10-6,640.02-3,179.28

Finding the Fourth Proportional to 4,430.10, 6,640.02 and 3,179.28

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Solution

The fourth proportional to 4,430.10, 6,640.02 and 3,179.28 is: 4,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.10 : 6,640.02 = 3,179.28 : x
  2. Step 2: Convert to fraction form
    4,430.10/6,640.02 = 3,179.28/x
  3. Step 3: Cross multiply
    4,430.10x = 6,640.02 × 3,179.28
  4. Step 4: Simplify right side
    4,430.10x = 21,110,482.79
  5. Step 5: Solve for x
    x = 21,110,482.79/4,430.10
  6. Step 6: Final answer
    x = 4,765.24

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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.