Home / 3,619.98-4,988.75-2,901.35

Finding the Fourth Proportional to 3,619.98, 4,988.75 and 2,901.35

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Solution

The fourth proportional to 3,619.98, 4,988.75 and 2,901.35 is: 3,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.98 : 4,988.75 = 2,901.35 : x
  2. Step 2: Convert to fraction form
    3,619.98/4,988.75 = 2,901.35/x
  3. Step 3: Cross multiply
    3,619.98x = 4,988.75 × 2,901.35
  4. Step 4: Simplify right side
    3,619.98x = 14,474,109.81
  5. Step 5: Solve for x
    x = 14,474,109.81/3,619.98
  6. Step 6: Final answer
    x = 3,998.39

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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.