Home / 1,940.02-2,679.40-1,503.20

Finding the Fourth Proportional to 1,940.02, 2,679.40 and 1,503.20

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Solution

The fourth proportional to 1,940.02, 2,679.40 and 1,503.20 is: 2,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.02 : 2,679.40 = 1,503.20 : x
  2. Step 2: Convert to fraction form
    1,940.02/2,679.40 = 1,503.20/x
  3. Step 3: Cross multiply
    1,940.02x = 2,679.40 × 1,503.20
  4. Step 4: Simplify right side
    1,940.02x = 4,027,674.08
  5. Step 5: Solve for x
    x = 4,027,674.08/1,940.02
  6. Step 6: Final answer
    x = 2,076.10

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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.