Home / 4,722.78-7,083.60-1,260.30

Finding the Fourth Proportional to 4,722.78, 7,083.60 and 1,260.30

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Solution

The fourth proportional to 4,722.78, 7,083.60 and 1,260.30 is: 1,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.78 : 7,083.60 = 1,260.30 : x
  2. Step 2: Convert to fraction form
    4,722.78/7,083.60 = 1,260.30/x
  3. Step 3: Cross multiply
    4,722.78x = 7,083.60 × 1,260.30
  4. Step 4: Simplify right side
    4,722.78x = 8,927,461.08
  5. Step 5: Solve for x
    x = 8,927,461.08/4,722.78
  6. Step 6: Final answer
    x = 1,890.30

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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.