Home / 1,368.20-1,889.16-1,052.98

Finding the Fourth Proportional to 1,368.20, 1,889.16 and 1,052.98

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Solution

The fourth proportional to 1,368.20, 1,889.16 and 1,052.98 is: 1,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.20 : 1,889.16 = 1,052.98 : x
  2. Step 2: Convert to fraction form
    1,368.20/1,889.16 = 1,052.98/x
  3. Step 3: Cross multiply
    1,368.20x = 1,889.16 × 1,052.98
  4. Step 4: Simplify right side
    1,368.20x = 1,989,247.70
  5. Step 5: Solve for x
    x = 1,989,247.70/1,368.20
  6. Step 6: Final answer
    x = 1,453.92

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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.