Home / 1,903.90-2,626.57-1,107.17

Finding the Fourth Proportional to 1,903.90, 2,626.57 and 1,107.17

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Solution

The fourth proportional to 1,903.90, 2,626.57 and 1,107.17 is: 1,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.90 : 2,626.57 = 1,107.17 : x
  2. Step 2: Convert to fraction form
    1,903.90/2,626.57 = 1,107.17/x
  3. Step 3: Cross multiply
    1,903.90x = 2,626.57 × 1,107.17
  4. Step 4: Simplify right side
    1,903.90x = 2,908,059.51
  5. Step 5: Solve for x
    x = 2,908,059.51/1,903.90
  6. Step 6: Final answer
    x = 1,527.42

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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.