Home / 2,051.70-2,830.43-1,266.20

Finding the Fourth Proportional to 2,051.70, 2,830.43 and 1,266.20

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Solution

The fourth proportional to 2,051.70, 2,830.43 and 1,266.20 is: 1,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.70 : 2,830.43 = 1,266.20 : x
  2. Step 2: Convert to fraction form
    2,051.70/2,830.43 = 1,266.20/x
  3. Step 3: Cross multiply
    2,051.70x = 2,830.43 × 1,266.20
  4. Step 4: Simplify right side
    2,051.70x = 3,583,869.98
  5. Step 5: Solve for x
    x = 3,583,869.98/2,051.70
  6. Step 6: Final answer
    x = 1,746.78

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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.