Home / 3,971.16-5,473.84-3,130.48

Finding the Fourth Proportional to 3,971.16, 5,473.84 and 3,130.48

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Solution

The fourth proportional to 3,971.16, 5,473.84 and 3,130.48 is: 4,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.16 : 5,473.84 = 3,130.48 : x
  2. Step 2: Convert to fraction form
    3,971.16/5,473.84 = 3,130.48/x
  3. Step 3: Cross multiply
    3,971.16x = 5,473.84 × 3,130.48
  4. Step 4: Simplify right side
    3,971.16x = 17,135,746.64
  5. Step 5: Solve for x
    x = 17,135,746.64/3,971.16
  6. Step 6: Final answer
    x = 4,315.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.