Home / 3,090.41-4,636.77-1,858.70

Finding the Fourth Proportional to 3,090.41, 4,636.77 and 1,858.70

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Solution

The fourth proportional to 3,090.41, 4,636.77 and 1,858.70 is: 2,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.41 : 4,636.77 = 1,858.70 : x
  2. Step 2: Convert to fraction form
    3,090.41/4,636.77 = 1,858.70/x
  3. Step 3: Cross multiply
    3,090.41x = 4,636.77 × 1,858.70
  4. Step 4: Simplify right side
    3,090.41x = 8,618,341.22
  5. Step 5: Solve for x
    x = 8,618,341.22/3,090.41
  6. Step 6: Final answer
    x = 2,788.74

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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.