Home / 4,090.36-6,132.78-1,316.20

Finding the Fourth Proportional to 4,090.36, 6,132.78 and 1,316.20

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Solution

The fourth proportional to 4,090.36, 6,132.78 and 1,316.20 is: 1,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.36 : 6,132.78 = 1,316.20 : x
  2. Step 2: Convert to fraction form
    4,090.36/6,132.78 = 1,316.20/x
  3. Step 3: Cross multiply
    4,090.36x = 6,132.78 × 1,316.20
  4. Step 4: Simplify right side
    4,090.36x = 8,071,965.04
  5. Step 5: Solve for x
    x = 8,071,965.04/4,090.36
  6. Step 6: Final answer
    x = 1,973.41

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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.