Home / 4,810.89-6,642.09-3,928.80

Finding the Fourth Proportional to 4,810.89, 6,642.09 and 3,928.80

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Solution

The fourth proportional to 4,810.89, 6,642.09 and 3,928.80 is: 5,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.89 : 6,642.09 = 3,928.80 : x
  2. Step 2: Convert to fraction form
    4,810.89/6,642.09 = 3,928.80/x
  3. Step 3: Cross multiply
    4,810.89x = 6,642.09 × 3,928.80
  4. Step 4: Simplify right side
    4,810.89x = 26,095,443.19
  5. Step 5: Solve for x
    x = 26,095,443.19/4,810.89
  6. Step 6: Final answer
    x = 5,424.24

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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.