Home / 4,743-7,114.50-1,280.25

Finding the Fourth Proportional to 4,743, 7,114.50 and 1,280.25

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Solution

The fourth proportional to 4,743, 7,114.50 and 1,280.25 is: 1,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743 : 7,114.50 = 1,280.25 : x
  2. Step 2: Convert to fraction form
    4,743/7,114.50 = 1,280.25/x
  3. Step 3: Cross multiply
    4,743x = 7,114.50 × 1,280.25
  4. Step 4: Simplify right side
    4,743x = 9,108,338.63
  5. Step 5: Solve for x
    x = 9,108,338.63/4,743
  6. Step 6: Final answer
    x = 1,920.38

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Double scale
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1.5x scale

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.