Home / 2,705.40-3,734.66-1,810.56

Finding the Fourth Proportional to 2,705.40, 3,734.66 and 1,810.56

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Solution

The fourth proportional to 2,705.40, 3,734.66 and 1,810.56 is: 2,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.40 : 3,734.66 = 1,810.56 : x
  2. Step 2: Convert to fraction form
    2,705.40/3,734.66 = 1,810.56/x
  3. Step 3: Cross multiply
    2,705.40x = 3,734.66 × 1,810.56
  4. Step 4: Simplify right side
    2,705.40x = 6,761,826.01
  5. Step 5: Solve for x
    x = 6,761,826.01/2,705.40
  6. Step 6: Final answer
    x = 2,499.38

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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.