Home / 5,090.41-7,636.80-1,580.23

Finding the Fourth Proportional to 5,090.41, 7,636.80 and 1,580.23

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Solution

The fourth proportional to 5,090.41, 7,636.80 and 1,580.23 is: 2,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.41 : 7,636.80 = 1,580.23 : x
  2. Step 2: Convert to fraction form
    5,090.41/7,636.80 = 1,580.23/x
  3. Step 3: Cross multiply
    5,090.41x = 7,636.80 × 1,580.23
  4. Step 4: Simplify right side
    5,090.41x = 12,067,900.46
  5. Step 5: Solve for x
    x = 12,067,900.46/5,090.41
  6. Step 6: Final answer
    x = 2,370.71

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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.