Home / 1,935.78-2,671.32-1,051.56

Finding the Fourth Proportional to 1,935.78, 2,671.32 and 1,051.56

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Solution

The fourth proportional to 1,935.78, 2,671.32 and 1,051.56 is: 1,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.78 : 2,671.32 = 1,051.56 : x
  2. Step 2: Convert to fraction form
    1,935.78/2,671.32 = 1,051.56/x
  3. Step 3: Cross multiply
    1,935.78x = 2,671.32 × 1,051.56
  4. Step 4: Simplify right side
    1,935.78x = 2,809,053.26
  5. Step 5: Solve for x
    x = 2,809,053.26/1,935.78
  6. Step 6: Final answer
    x = 1,451.12

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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.