Home / 3,090.47-4,635.77-1,858.91

Finding the Fourth Proportional to 3,090.47, 4,635.77 and 1,858.91

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Solution

The fourth proportional to 3,090.47, 4,635.77 and 1,858.91 is: 2,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.47 : 4,635.77 = 1,858.91 : x
  2. Step 2: Convert to fraction form
    3,090.47/4,635.77 = 1,858.91/x
  3. Step 3: Cross multiply
    3,090.47x = 4,635.77 × 1,858.91
  4. Step 4: Simplify right side
    3,090.47x = 8,617,446.74
  5. Step 5: Solve for x
    x = 8,617,446.74/3,090.47
  6. Step 6: Final answer
    x = 2,788.40

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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.