Home / 1,778.75-2,454.37-1,070.43

Finding the Fourth Proportional to 1,778.75, 2,454.37 and 1,070.43

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Solution

The fourth proportional to 1,778.75, 2,454.37 and 1,070.43 is: 1,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.75 : 2,454.37 = 1,070.43 : x
  2. Step 2: Convert to fraction form
    1,778.75/2,454.37 = 1,070.43/x
  3. Step 3: Cross multiply
    1,778.75x = 2,454.37 × 1,070.43
  4. Step 4: Simplify right side
    1,778.75x = 2,627,231.28
  5. Step 5: Solve for x
    x = 2,627,231.28/1,778.75
  6. Step 6: Final answer
    x = 1,477.01

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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.