Home / 6,148.85-8,470.60-4,889.51

Finding the Fourth Proportional to 6,148.85, 8,470.60 and 4,889.51

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Solution

The fourth proportional to 6,148.85, 8,470.60 and 4,889.51 is: 6,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,148.85 : 8,470.60 = 4,889.51 : x
  2. Step 2: Convert to fraction form
    6,148.85/8,470.60 = 4,889.51/x
  3. Step 3: Cross multiply
    6,148.85x = 8,470.60 × 4,889.51
  4. Step 4: Simplify right side
    6,148.85x = 41,417,083.41
  5. Step 5: Solve for x
    x = 41,417,083.41/6,148.85
  6. Step 6: Final answer
    x = 6,735.74

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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.