Home / 2,532.40-3,802.20-1,985.20

Finding the Fourth Proportional to 2,532.40, 3,802.20 and 1,985.20

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Solution

The fourth proportional to 2,532.40, 3,802.20 and 1,985.20 is: 2,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,532.40 : 3,802.20 = 1,985.20 : x
  2. Step 2: Convert to fraction form
    2,532.40/3,802.20 = 1,985.20/x
  3. Step 3: Cross multiply
    2,532.40x = 3,802.20 × 1,985.20
  4. Step 4: Simplify right side
    2,532.40x = 7,548,127.44
  5. Step 5: Solve for x
    x = 7,548,127.44/2,532.40
  6. Step 6: Final answer
    x = 2,980.62

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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.