Home / 2,899.08-4,000.32-1,720.62

Finding the Fourth Proportional to 2,899.08, 4,000.32 and 1,720.62

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Solution

The fourth proportional to 2,899.08, 4,000.32 and 1,720.62 is: 2,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.08 : 4,000.32 = 1,720.62 : x
  2. Step 2: Convert to fraction form
    2,899.08/4,000.32 = 1,720.62/x
  3. Step 3: Cross multiply
    2,899.08x = 4,000.32 × 1,720.62
  4. Step 4: Simplify right side
    2,899.08x = 6,883,030.60
  5. Step 5: Solve for x
    x = 6,883,030.60/2,899.08
  6. Step 6: Final answer
    x = 2,374.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.