Home / 1,914.23-2,871.55-1,430.36

Finding the Fourth Proportional to 1,914.23, 2,871.55 and 1,430.36

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Solution

The fourth proportional to 1,914.23, 2,871.55 and 1,430.36 is: 2,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.23 : 2,871.55 = 1,430.36 : x
  2. Step 2: Convert to fraction form
    1,914.23/2,871.55 = 1,430.36/x
  3. Step 3: Cross multiply
    1,914.23x = 2,871.55 × 1,430.36
  4. Step 4: Simplify right side
    1,914.23x = 4,107,348.46
  5. Step 5: Solve for x
    x = 4,107,348.46/1,914.23
  6. Step 6: Final answer
    x = 2,145.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.