Home / 1,912.59-2,869.60-1,302.05

Finding the Fourth Proportional to 1,912.59, 2,869.60 and 1,302.05

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Solution

The fourth proportional to 1,912.59, 2,869.60 and 1,302.05 is: 1,953.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.59 : 2,869.60 = 1,302.05 : x
  2. Step 2: Convert to fraction form
    1,912.59/2,869.60 = 1,302.05/x
  3. Step 3: Cross multiply
    1,912.59x = 2,869.60 × 1,302.05
  4. Step 4: Simplify right side
    1,912.59x = 3,736,364.63
  5. Step 5: Solve for x
    x = 3,736,364.63/1,912.59
  6. Step 6: Final answer
    x = 1,953.57

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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.