Home / 3,485.90-4,809.79-2,070.02

Finding the Fourth Proportional to 3,485.90, 4,809.79 and 2,070.02

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Solution

The fourth proportional to 3,485.90, 4,809.79 and 2,070.02 is: 2,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.90 : 4,809.79 = 2,070.02 : x
  2. Step 2: Convert to fraction form
    3,485.90/4,809.79 = 2,070.02/x
  3. Step 3: Cross multiply
    3,485.90x = 4,809.79 × 2,070.02
  4. Step 4: Simplify right side
    3,485.90x = 9,956,361.50
  5. Step 5: Solve for x
    x = 9,956,361.50/3,485.90
  6. Step 6: Final answer
    x = 2,856.18

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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.