Home / 3,437.85-4,742.67-2,111.07

Finding the Fourth Proportional to 3,437.85, 4,742.67 and 2,111.07

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Solution

The fourth proportional to 3,437.85, 4,742.67 and 2,111.07 is: 2,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.85 : 4,742.67 = 2,111.07 : x
  2. Step 2: Convert to fraction form
    3,437.85/4,742.67 = 2,111.07/x
  3. Step 3: Cross multiply
    3,437.85x = 4,742.67 × 2,111.07
  4. Step 4: Simplify right side
    3,437.85x = 10,012,108.36
  5. Step 5: Solve for x
    x = 10,012,108.36/3,437.85
  6. Step 6: Final answer
    x = 2,912.32

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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.