Home / 2,913.60-4,018.40-2,670.64

Finding the Fourth Proportional to 2,913.60, 4,018.40 and 2,670.64

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Solution

The fourth proportional to 2,913.60, 4,018.40 and 2,670.64 is: 3,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.60 : 4,018.40 = 2,670.64 : x
  2. Step 2: Convert to fraction form
    2,913.60/4,018.40 = 2,670.64/x
  3. Step 3: Cross multiply
    2,913.60x = 4,018.40 × 2,670.64
  4. Step 4: Simplify right side
    2,913.60x = 10,731,699.78
  5. Step 5: Solve for x
    x = 10,731,699.78/2,913.60
  6. Step 6: Final answer
    x = 3,683.31

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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.