Home / 2,678.26-3,697.28-1,783.48

Finding the Fourth Proportional to 2,678.26, 3,697.28 and 1,783.48

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Solution

The fourth proportional to 2,678.26, 3,697.28 and 1,783.48 is: 2,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.26 : 3,697.28 = 1,783.48 : x
  2. Step 2: Convert to fraction form
    2,678.26/3,697.28 = 1,783.48/x
  3. Step 3: Cross multiply
    2,678.26x = 3,697.28 × 1,783.48
  4. Step 4: Simplify right side
    2,678.26x = 6,594,024.93
  5. Step 5: Solve for x
    x = 6,594,024.93/2,678.26
  6. Step 6: Final answer
    x = 2,462.06

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1.5x scale

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.