Home / 4,690.20-7,030.80-2,713.80

Finding the Fourth Proportional to 4,690.20, 7,030.80 and 2,713.80

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Solution

The fourth proportional to 4,690.20, 7,030.80 and 2,713.80 is: 4,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.20 : 7,030.80 = 2,713.80 : x
  2. Step 2: Convert to fraction form
    4,690.20/7,030.80 = 2,713.80/x
  3. Step 3: Cross multiply
    4,690.20x = 7,030.80 × 2,713.80
  4. Step 4: Simplify right side
    4,690.20x = 19,080,185.04
  5. Step 5: Solve for x
    x = 19,080,185.04/4,690.20
  6. Step 6: Final answer
    x = 4,068.10

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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.