Home / 3,903.54-5,386.73-2,135.22

Finding the Fourth Proportional to 3,903.54, 5,386.73 and 2,135.22

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Solution

The fourth proportional to 3,903.54, 5,386.73 and 2,135.22 is: 2,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.54 : 5,386.73 = 2,135.22 : x
  2. Step 2: Convert to fraction form
    3,903.54/5,386.73 = 2,135.22/x
  3. Step 3: Cross multiply
    3,903.54x = 5,386.73 × 2,135.22
  4. Step 4: Simplify right side
    3,903.54x = 11,501,842.95
  5. Step 5: Solve for x
    x = 11,501,842.95/3,903.54
  6. Step 6: Final answer
    x = 2,946.52

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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.