Home / 1,802.40-2,490.66-1,625.28

Finding the Fourth Proportional to 1,802.40, 2,490.66 and 1,625.28

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Solution

The fourth proportional to 1,802.40, 2,490.66 and 1,625.28 is: 2,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.40 : 2,490.66 = 1,625.28 : x
  2. Step 2: Convert to fraction form
    1,802.40/2,490.66 = 1,625.28/x
  3. Step 3: Cross multiply
    1,802.40x = 2,490.66 × 1,625.28
  4. Step 4: Simplify right side
    1,802.40x = 4,048,019.88
  5. Step 5: Solve for x
    x = 4,048,019.88/1,802.40
  6. Step 6: Final answer
    x = 2,245.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.