Home / 2,666.20-3,999.30-1,514.20

Finding the Fourth Proportional to 2,666.20, 3,999.30 and 1,514.20

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Solution

The fourth proportional to 2,666.20, 3,999.30 and 1,514.20 is: 2,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.20 : 3,999.30 = 1,514.20 : x
  2. Step 2: Convert to fraction form
    2,666.20/3,999.30 = 1,514.20/x
  3. Step 3: Cross multiply
    2,666.20x = 3,999.30 × 1,514.20
  4. Step 4: Simplify right side
    2,666.20x = 6,055,740.06
  5. Step 5: Solve for x
    x = 6,055,740.06/2,666.20
  6. Step 6: Final answer
    x = 2,271.30

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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.