Home / 2,117.16-3,157.88-1,995.23

Finding the Fourth Proportional to 2,117.16, 3,157.88 and 1,995.23

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Solution

The fourth proportional to 2,117.16, 3,157.88 and 1,995.23 is: 2,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.16 : 3,157.88 = 1,995.23 : x
  2. Step 2: Convert to fraction form
    2,117.16/3,157.88 = 1,995.23/x
  3. Step 3: Cross multiply
    2,117.16x = 3,157.88 × 1,995.23
  4. Step 4: Simplify right side
    2,117.16x = 6,300,694.83
  5. Step 5: Solve for x
    x = 6,300,694.83/2,117.16
  6. Step 6: Final answer
    x = 2,976.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.