Home / 3,405.65-4,700.04-2,079.60

Finding the Fourth Proportional to 3,405.65, 4,700.04 and 2,079.60

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Solution

The fourth proportional to 3,405.65, 4,700.04 and 2,079.60 is: 2,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.65 : 4,700.04 = 2,079.60 : x
  2. Step 2: Convert to fraction form
    3,405.65/4,700.04 = 2,079.60/x
  3. Step 3: Cross multiply
    3,405.65x = 4,700.04 × 2,079.60
  4. Step 4: Simplify right side
    3,405.65x = 9,774,193.90
  5. Step 5: Solve for x
    x = 9,774,193.90/3,405.65
  6. Step 6: Final answer
    x = 2,870.00

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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.