Home / 2,816.62-3,886.96-1,574.62

Finding the Fourth Proportional to 2,816.62, 3,886.96 and 1,574.62

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Solution

The fourth proportional to 2,816.62, 3,886.96 and 1,574.62 is: 2,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.62 : 3,886.96 = 1,574.62 : x
  2. Step 2: Convert to fraction form
    2,816.62/3,886.96 = 1,574.62/x
  3. Step 3: Cross multiply
    2,816.62x = 3,886.96 × 1,574.62
  4. Step 4: Simplify right side
    2,816.62x = 6,120,484.96
  5. Step 5: Solve for x
    x = 6,120,484.96/2,816.62
  6. Step 6: Final answer
    x = 2,172.99

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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.