Home / 3,731.12-5,598.88-1,392.80

Finding the Fourth Proportional to 3,731.12, 5,598.88 and 1,392.80

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Solution

The fourth proportional to 3,731.12, 5,598.88 and 1,392.80 is: 2,090.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.12 : 5,598.88 = 1,392.80 : x
  2. Step 2: Convert to fraction form
    3,731.12/5,598.88 = 1,392.80/x
  3. Step 3: Cross multiply
    3,731.12x = 5,598.88 × 1,392.80
  4. Step 4: Simplify right side
    3,731.12x = 7,798,120.06
  5. Step 5: Solve for x
    x = 7,798,120.06/3,731.12
  6. Step 6: Final answer
    x = 2,090.02

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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.