Home / 4,380.78-6,045.61-2,391.47

Finding the Fourth Proportional to 4,380.78, 6,045.61 and 2,391.47

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Solution

The fourth proportional to 4,380.78, 6,045.61 and 2,391.47 is: 3,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.78 : 6,045.61 = 2,391.47 : x
  2. Step 2: Convert to fraction form
    4,380.78/6,045.61 = 2,391.47/x
  3. Step 3: Cross multiply
    4,380.78x = 6,045.61 × 2,391.47
  4. Step 4: Simplify right side
    4,380.78x = 14,457,894.95
  5. Step 5: Solve for x
    x = 14,457,894.95/4,380.78
  6. Step 6: Final answer
    x = 3,300.30

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1.5x scale

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.