Home / 2,656.96-3,666.60-1,478.02

Finding the Fourth Proportional to 2,656.96, 3,666.60 and 1,478.02

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Solution

The fourth proportional to 2,656.96, 3,666.60 and 1,478.02 is: 2,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.96 : 3,666.60 = 1,478.02 : x
  2. Step 2: Convert to fraction form
    2,656.96/3,666.60 = 1,478.02/x
  3. Step 3: Cross multiply
    2,656.96x = 3,666.60 × 1,478.02
  4. Step 4: Simplify right side
    2,656.96x = 5,419,308.13
  5. Step 5: Solve for x
    x = 5,419,308.13/2,656.96
  6. Step 6: Final answer
    x = 2,039.66

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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.