Home / 1,909.78-2,635.60-1,070.52

Finding the Fourth Proportional to 1,909.78, 2,635.60 and 1,070.52

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Solution

The fourth proportional to 1,909.78, 2,635.60 and 1,070.52 is: 1,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.78 : 2,635.60 = 1,070.52 : x
  2. Step 2: Convert to fraction form
    1,909.78/2,635.60 = 1,070.52/x
  3. Step 3: Cross multiply
    1,909.78x = 2,635.60 × 1,070.52
  4. Step 4: Simplify right side
    1,909.78x = 2,821,462.51
  5. Step 5: Solve for x
    x = 2,821,462.51/1,909.78
  6. Step 6: Final answer
    x = 1,477.38

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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.