Home / 3,311.37-4,570.08-1,985.81

Finding the Fourth Proportional to 3,311.37, 4,570.08 and 1,985.81

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Solution

The fourth proportional to 3,311.37, 4,570.08 and 1,985.81 is: 2,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.37 : 4,570.08 = 1,985.81 : x
  2. Step 2: Convert to fraction form
    3,311.37/4,570.08 = 1,985.81/x
  3. Step 3: Cross multiply
    3,311.37x = 4,570.08 × 1,985.81
  4. Step 4: Simplify right side
    3,311.37x = 9,075,287.71
  5. Step 5: Solve for x
    x = 9,075,287.71/3,311.37
  6. Step 6: Final answer
    x = 2,740.64

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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.