Home / 2,107.37-2,907.95-1,223.01

Finding the Fourth Proportional to 2,107.37, 2,907.95 and 1,223.01

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Solution

The fourth proportional to 2,107.37, 2,907.95 and 1,223.01 is: 1,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.37 : 2,907.95 = 1,223.01 : x
  2. Step 2: Convert to fraction form
    2,107.37/2,907.95 = 1,223.01/x
  3. Step 3: Cross multiply
    2,107.37x = 2,907.95 × 1,223.01
  4. Step 4: Simplify right side
    2,107.37x = 3,556,445.81
  5. Step 5: Solve for x
    x = 3,556,445.81/2,107.37
  6. Step 6: Final answer
    x = 1,687.62

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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.