Home / 2,038.20-2,812.70-1,106.70

Finding the Fourth Proportional to 2,038.20, 2,812.70 and 1,106.70

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Solution

The fourth proportional to 2,038.20, 2,812.70 and 1,106.70 is: 1,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.20 : 2,812.70 = 1,106.70 : x
  2. Step 2: Convert to fraction form
    2,038.20/2,812.70 = 1,106.70/x
  3. Step 3: Cross multiply
    2,038.20x = 2,812.70 × 1,106.70
  4. Step 4: Simplify right side
    2,038.20x = 3,112,815.09
  5. Step 5: Solve for x
    x = 3,112,815.09/2,038.20
  6. Step 6: Final answer
    x = 1,527.24

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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.