Home / 4,852.10-7,278.40-1,389.26

Finding the Fourth Proportional to 4,852.10, 7,278.40 and 1,389.26

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Solution

The fourth proportional to 4,852.10, 7,278.40 and 1,389.26 is: 2,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,852.10 : 7,278.40 = 1,389.26 : x
  2. Step 2: Convert to fraction form
    4,852.10/7,278.40 = 1,389.26/x
  3. Step 3: Cross multiply
    4,852.10x = 7,278.40 × 1,389.26
  4. Step 4: Simplify right side
    4,852.10x = 10,111,589.98
  5. Step 5: Solve for x
    x = 10,111,589.98/4,852.10
  6. Step 6: Final answer
    x = 2,083.96

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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.