Home / 1,853.51-2,777.87-1,387.62

Finding the Fourth Proportional to 1,853.51, 2,777.87 and 1,387.62

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Solution

The fourth proportional to 1,853.51, 2,777.87 and 1,387.62 is: 2,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.51 : 2,777.87 = 1,387.62 : x
  2. Step 2: Convert to fraction form
    1,853.51/2,777.87 = 1,387.62/x
  3. Step 3: Cross multiply
    1,853.51x = 2,777.87 × 1,387.62
  4. Step 4: Simplify right side
    1,853.51x = 3,854,621.03
  5. Step 5: Solve for x
    x = 3,854,621.03/1,853.51
  6. Step 6: Final answer
    x = 2,079.64

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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.