Home / 1,827.37-2,740.47-961.21

Finding the Fourth Proportional to 1,827.37, 2,740.47 and 961.21

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Solution

The fourth proportional to 1,827.37, 2,740.47 and 961.21 is: 1,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.37 : 2,740.47 = 961.21 : x
  2. Step 2: Convert to fraction form
    1,827.37/2,740.47 = 961.21/x
  3. Step 3: Cross multiply
    1,827.37x = 2,740.47 × 961.21
  4. Step 4: Simplify right side
    1,827.37x = 2,634,167.17
  5. Step 5: Solve for x
    x = 2,634,167.17/1,827.37
  6. Step 6: Final answer
    x = 1,441.51

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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.