Home / 2,240.41-3,090.21-1,820.77

Finding the Fourth Proportional to 2,240.41, 3,090.21 and 1,820.77

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Solution

The fourth proportional to 2,240.41, 3,090.21 and 1,820.77 is: 2,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.41 : 3,090.21 = 1,820.77 : x
  2. Step 2: Convert to fraction form
    2,240.41/3,090.21 = 1,820.77/x
  3. Step 3: Cross multiply
    2,240.41x = 3,090.21 × 1,820.77
  4. Step 4: Simplify right side
    2,240.41x = 5,626,561.66
  5. Step 5: Solve for x
    x = 5,626,561.66/2,240.41
  6. Step 6: Final answer
    x = 2,511.40

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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.