Home / 1,314.80-1,968.38-1,025.36

Finding the Fourth Proportional to 1,314.80, 1,968.38 and 1,025.36

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Solution

The fourth proportional to 1,314.80, 1,968.38 and 1,025.36 is: 1,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.80 : 1,968.38 = 1,025.36 : x
  2. Step 2: Convert to fraction form
    1,314.80/1,968.38 = 1,025.36/x
  3. Step 3: Cross multiply
    1,314.80x = 1,968.38 × 1,025.36
  4. Step 4: Simplify right side
    1,314.80x = 2,018,298.12
  5. Step 5: Solve for x
    x = 2,018,298.12/1,314.80
  6. Step 6: Final answer
    x = 1,535.06

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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.