Home / 2,859.03-4,287.45-1,009.80

Finding the Fourth Proportional to 2,859.03, 4,287.45 and 1,009.80

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Solution

The fourth proportional to 2,859.03, 4,287.45 and 1,009.80 is: 1,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.03 : 4,287.45 = 1,009.80 : x
  2. Step 2: Convert to fraction form
    2,859.03/4,287.45 = 1,009.80/x
  3. Step 3: Cross multiply
    2,859.03x = 4,287.45 × 1,009.80
  4. Step 4: Simplify right side
    2,859.03x = 4,329,467.01
  5. Step 5: Solve for x
    x = 4,329,467.01/2,859.03
  6. Step 6: Final answer
    x = 1,514.31

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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.