Home / 3,141.90-4,707.45-2,045.70

Finding the Fourth Proportional to 3,141.90, 4,707.45 and 2,045.70

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Solution

The fourth proportional to 3,141.90, 4,707.45 and 2,045.70 is: 3,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.90 : 4,707.45 = 2,045.70 : x
  2. Step 2: Convert to fraction form
    3,141.90/4,707.45 = 2,045.70/x
  3. Step 3: Cross multiply
    3,141.90x = 4,707.45 × 2,045.70
  4. Step 4: Simplify right side
    3,141.90x = 9,630,030.47
  5. Step 5: Solve for x
    x = 9,630,030.47/3,141.90
  6. Step 6: Final answer
    x = 3,065.03

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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.