Home / 1,396.02-1,924.18-1,278.37

Finding the Fourth Proportional to 1,396.02, 1,924.18 and 1,278.37

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Solution

The fourth proportional to 1,396.02, 1,924.18 and 1,278.37 is: 1,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.02 : 1,924.18 = 1,278.37 : x
  2. Step 2: Convert to fraction form
    1,396.02/1,924.18 = 1,278.37/x
  3. Step 3: Cross multiply
    1,396.02x = 1,924.18 × 1,278.37
  4. Step 4: Simplify right side
    1,396.02x = 2,459,813.99
  5. Step 5: Solve for x
    x = 2,459,813.99/1,396.02
  6. Step 6: Final answer
    x = 1,762.02

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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.