Home / 2,859.30-4,289.36-1,398.53

Finding the Fourth Proportional to 2,859.30, 4,289.36 and 1,398.53

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Solution

The fourth proportional to 2,859.30, 4,289.36 and 1,398.53 is: 2,098.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.30 : 4,289.36 = 1,398.53 : x
  2. Step 2: Convert to fraction form
    2,859.30/4,289.36 = 1,398.53/x
  3. Step 3: Cross multiply
    2,859.30x = 4,289.36 × 1,398.53
  4. Step 4: Simplify right side
    2,859.30x = 5,998,802.37
  5. Step 5: Solve for x
    x = 5,998,802.37/2,859.30
  6. Step 6: Final answer
    x = 2,098.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.