Home / 1,727.64-2,387.33-1,642.30

Finding the Fourth Proportional to 1,727.64, 2,387.33 and 1,642.30

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Solution

The fourth proportional to 1,727.64, 2,387.33 and 1,642.30 is: 2,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.64 : 2,387.33 = 1,642.30 : x
  2. Step 2: Convert to fraction form
    1,727.64/2,387.33 = 1,642.30/x
  3. Step 3: Cross multiply
    1,727.64x = 2,387.33 × 1,642.30
  4. Step 4: Simplify right side
    1,727.64x = 3,920,717.10
  5. Step 5: Solve for x
    x = 3,920,717.10/1,727.64
  6. Step 6: Final answer
    x = 2,269.40

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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.