Home / 2,868.70-4,302.13-1,113.58

Finding the Fourth Proportional to 2,868.70, 4,302.13 and 1,113.58

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Solution

The fourth proportional to 2,868.70, 4,302.13 and 1,113.58 is: 1,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.70 : 4,302.13 = 1,113.58 : x
  2. Step 2: Convert to fraction form
    2,868.70/4,302.13 = 1,113.58/x
  3. Step 3: Cross multiply
    2,868.70x = 4,302.13 × 1,113.58
  4. Step 4: Simplify right side
    2,868.70x = 4,790,756.56
  5. Step 5: Solve for x
    x = 4,790,756.56/2,868.70
  6. Step 6: Final answer
    x = 1,670.01

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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.