Home / 3,130.65-4,318.41-2,068.42

Finding the Fourth Proportional to 3,130.65, 4,318.41 and 2,068.42

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Solution

The fourth proportional to 3,130.65, 4,318.41 and 2,068.42 is: 2,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.65 : 4,318.41 = 2,068.42 : x
  2. Step 2: Convert to fraction form
    3,130.65/4,318.41 = 2,068.42/x
  3. Step 3: Cross multiply
    3,130.65x = 4,318.41 × 2,068.42
  4. Step 4: Simplify right side
    3,130.65x = 8,932,285.61
  5. Step 5: Solve for x
    x = 8,932,285.61/3,130.65
  6. Step 6: Final answer
    x = 2,853.17

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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.