Home / 4,743.02-7,114.26-1,280

Finding the Fourth Proportional to 4,743.02, 7,114.26 and 1,280

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Solution

The fourth proportional to 4,743.02, 7,114.26 and 1,280 is: 1,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.02 : 7,114.26 = 1,280 : x
  2. Step 2: Convert to fraction form
    4,743.02/7,114.26 = 1,280/x
  3. Step 3: Cross multiply
    4,743.02x = 7,114.26 × 1,280
  4. Step 4: Simplify right side
    4,743.02x = 9,106,252.80
  5. Step 5: Solve for x
    x = 9,106,252.80/4,743.02
  6. Step 6: Final answer
    x = 1,919.93

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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.