Home / 2,107.53-2,907.18-1,267.92

Finding the Fourth Proportional to 2,107.53, 2,907.18 and 1,267.92

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Solution

The fourth proportional to 2,107.53, 2,907.18 and 1,267.92 is: 1,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.53 : 2,907.18 = 1,267.92 : x
  2. Step 2: Convert to fraction form
    2,107.53/2,907.18 = 1,267.92/x
  3. Step 3: Cross multiply
    2,107.53x = 2,907.18 × 1,267.92
  4. Step 4: Simplify right side
    2,107.53x = 3,686,071.67
  5. Step 5: Solve for x
    x = 3,686,071.67/2,107.53
  6. Step 6: Final answer
    x = 1,749.00

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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.