Home / 2,440.72-3,368.64-1,556.80

Finding the Fourth Proportional to 2,440.72, 3,368.64 and 1,556.80

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Solution

The fourth proportional to 2,440.72, 3,368.64 and 1,556.80 is: 2,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.72 : 3,368.64 = 1,556.80 : x
  2. Step 2: Convert to fraction form
    2,440.72/3,368.64 = 1,556.80/x
  3. Step 3: Cross multiply
    2,440.72x = 3,368.64 × 1,556.80
  4. Step 4: Simplify right side
    2,440.72x = 5,244,298.75
  5. Step 5: Solve for x
    x = 5,244,298.75/2,440.72
  6. Step 6: Final answer
    x = 2,148.67

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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.