Home / 2,666.34-3,999.48-1,205.10

Finding the Fourth Proportional to 2,666.34, 3,999.48 and 1,205.10

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Solution

The fourth proportional to 2,666.34, 3,999.48 and 1,205.10 is: 1,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.34 : 3,999.48 = 1,205.10 : x
  2. Step 2: Convert to fraction form
    2,666.34/3,999.48 = 1,205.10/x
  3. Step 3: Cross multiply
    2,666.34x = 3,999.48 × 1,205.10
  4. Step 4: Simplify right side
    2,666.34x = 4,819,773.35
  5. Step 5: Solve for x
    x = 4,819,773.35/2,666.34
  6. Step 6: Final answer
    x = 1,807.64

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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.