Home / 2,106.34-2,905.86-1,267.06

Finding the Fourth Proportional to 2,106.34, 2,905.86 and 1,267.06

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Solution

The fourth proportional to 2,106.34, 2,905.86 and 1,267.06 is: 1,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.34 : 2,905.86 = 1,267.06 : x
  2. Step 2: Convert to fraction form
    2,106.34/2,905.86 = 1,267.06/x
  3. Step 3: Cross multiply
    2,106.34x = 2,905.86 × 1,267.06
  4. Step 4: Simplify right side
    2,106.34x = 3,681,898.97
  5. Step 5: Solve for x
    x = 3,681,898.97/2,106.34
  6. Step 6: Final answer
    x = 1,748.01

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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.