Home / 2,645.10-3,967.68-1,820.92

Finding the Fourth Proportional to 2,645.10, 3,967.68 and 1,820.92

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Solution

The fourth proportional to 2,645.10, 3,967.68 and 1,820.92 is: 2,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.10 : 3,967.68 = 1,820.92 : x
  2. Step 2: Convert to fraction form
    2,645.10/3,967.68 = 1,820.92/x
  3. Step 3: Cross multiply
    2,645.10x = 3,967.68 × 1,820.92
  4. Step 4: Simplify right side
    2,645.10x = 7,224,827.87
  5. Step 5: Solve for x
    x = 7,224,827.87/2,645.10
  6. Step 6: Final answer
    x = 2,731.40

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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.