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Finding the Fourth Proportional to 5,690.62, 8,538.41 and 1,995.51

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Solution

The fourth proportional to 5,690.62, 8,538.41 and 1,995.51 is: 2,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.62 : 8,538.41 = 1,995.51 : x
  2. Step 2: Convert to fraction form
    5,690.62/8,538.41 = 1,995.51/x
  3. Step 3: Cross multiply
    5,690.62x = 8,538.41 × 1,995.51
  4. Step 4: Simplify right side
    5,690.62x = 17,038,482.54
  5. Step 5: Solve for x
    x = 17,038,482.54/5,690.62
  6. Step 6: Final answer
    x = 2,994.13

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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.