Home / 2,289.51-3,159.48-1,294.77

Finding the Fourth Proportional to 2,289.51, 3,159.48 and 1,294.77

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Solution

The fourth proportional to 2,289.51, 3,159.48 and 1,294.77 is: 1,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.51 : 3,159.48 = 1,294.77 : x
  2. Step 2: Convert to fraction form
    2,289.51/3,159.48 = 1,294.77/x
  3. Step 3: Cross multiply
    2,289.51x = 3,159.48 × 1,294.77
  4. Step 4: Simplify right side
    2,289.51x = 4,090,799.92
  5. Step 5: Solve for x
    x = 4,090,799.92/2,289.51
  6. Step 6: Final answer
    x = 1,786.76

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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.