Home / 5,090.94-7,636.98-1,393.02

Finding the Fourth Proportional to 5,090.94, 7,636.98 and 1,393.02

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Solution

The fourth proportional to 5,090.94, 7,636.98 and 1,393.02 is: 2,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.94 : 7,636.98 = 1,393.02 : x
  2. Step 2: Convert to fraction form
    5,090.94/7,636.98 = 1,393.02/x
  3. Step 3: Cross multiply
    5,090.94x = 7,636.98 × 1,393.02
  4. Step 4: Simplify right side
    5,090.94x = 10,638,465.88
  5. Step 5: Solve for x
    x = 10,638,465.88/5,090.94
  6. Step 6: Final answer
    x = 2,089.69

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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.