Home / 4,260.78-6,391.14-1,182.78

Finding the Fourth Proportional to 4,260.78, 6,391.14 and 1,182.78

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Solution

The fourth proportional to 4,260.78, 6,391.14 and 1,182.78 is: 1,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.78 : 6,391.14 = 1,182.78 : x
  2. Step 2: Convert to fraction form
    4,260.78/6,391.14 = 1,182.78/x
  3. Step 3: Cross multiply
    4,260.78x = 6,391.14 × 1,182.78
  4. Step 4: Simplify right side
    4,260.78x = 7,559,312.57
  5. Step 5: Solve for x
    x = 7,559,312.57/4,260.78
  6. Step 6: Final answer
    x = 1,774.16

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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.