Home / 5,090.12-7,635.24-1,392.74

Finding the Fourth Proportional to 5,090.12, 7,635.24 and 1,392.74

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Solution

The fourth proportional to 5,090.12, 7,635.24 and 1,392.74 is: 2,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.12 : 7,635.24 = 1,392.74 : x
  2. Step 2: Convert to fraction form
    5,090.12/7,635.24 = 1,392.74/x
  3. Step 3: Cross multiply
    5,090.12x = 7,635.24 × 1,392.74
  4. Step 4: Simplify right side
    5,090.12x = 10,633,904.16
  5. Step 5: Solve for x
    x = 10,633,904.16/5,090.12
  6. Step 6: Final answer
    x = 2,089.13

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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.