Home / 1,798.08-2,477.68-1,378.44

Finding the Fourth Proportional to 1,798.08, 2,477.68 and 1,378.44

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Solution

The fourth proportional to 1,798.08, 2,477.68 and 1,378.44 is: 1,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.08 : 2,477.68 = 1,378.44 : x
  2. Step 2: Convert to fraction form
    1,798.08/2,477.68 = 1,378.44/x
  3. Step 3: Cross multiply
    1,798.08x = 2,477.68 × 1,378.44
  4. Step 4: Simplify right side
    1,798.08x = 3,415,333.22
  5. Step 5: Solve for x
    x = 3,415,333.22/1,798.08
  6. Step 6: Final answer
    x = 1,899.43

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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.