Home / 2,802.40-4,202.08-1,157.90

Finding the Fourth Proportional to 2,802.40, 4,202.08 and 1,157.90

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Solution

The fourth proportional to 2,802.40, 4,202.08 and 1,157.90 is: 1,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.40 : 4,202.08 = 1,157.90 : x
  2. Step 2: Convert to fraction form
    2,802.40/4,202.08 = 1,157.90/x
  3. Step 3: Cross multiply
    2,802.40x = 4,202.08 × 1,157.90
  4. Step 4: Simplify right side
    2,802.40x = 4,865,564.53
  5. Step 5: Solve for x
    x = 4,865,564.53/2,802.40
  6. Step 6: Final answer
    x = 1,736.21

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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.