Home / 2,645.10-3,657.21-2,317.05

Finding the Fourth Proportional to 2,645.10, 3,657.21 and 2,317.05

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Solution

The fourth proportional to 2,645.10, 3,657.21 and 2,317.05 is: 3,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.10 : 3,657.21 = 2,317.05 : x
  2. Step 2: Convert to fraction form
    2,645.10/3,657.21 = 2,317.05/x
  3. Step 3: Cross multiply
    2,645.10x = 3,657.21 × 2,317.05
  4. Step 4: Simplify right side
    2,645.10x = 8,473,938.43
  5. Step 5: Solve for x
    x = 8,473,938.43/2,645.10
  6. Step 6: Final answer
    x = 3,203.64

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1.5x scale

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.