Home / 2,816.53-3,886.79-1,574.53

Finding the Fourth Proportional to 2,816.53, 3,886.79 and 1,574.53

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Solution

The fourth proportional to 2,816.53, 3,886.79 and 1,574.53 is: 2,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.53 : 3,886.79 = 1,574.53 : x
  2. Step 2: Convert to fraction form
    2,816.53/3,886.79 = 1,574.53/x
  3. Step 3: Cross multiply
    2,816.53x = 3,886.79 × 1,574.53
  4. Step 4: Simplify right side
    2,816.53x = 6,119,840.15
  5. Step 5: Solve for x
    x = 6,119,840.15/2,816.53
  6. Step 6: Final answer
    x = 2,172.83

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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.