Home / 4,089.18-6,133.57-1,315.79

Finding the Fourth Proportional to 4,089.18, 6,133.57 and 1,315.79

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Solution

The fourth proportional to 4,089.18, 6,133.57 and 1,315.79 is: 1,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.18 : 6,133.57 = 1,315.79 : x
  2. Step 2: Convert to fraction form
    4,089.18/6,133.57 = 1,315.79/x
  3. Step 3: Cross multiply
    4,089.18x = 6,133.57 × 1,315.79
  4. Step 4: Simplify right side
    4,089.18x = 8,070,473.88
  5. Step 5: Solve for x
    x = 8,070,473.88/4,089.18
  6. Step 6: Final answer
    x = 1,973.62

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1.5x scale

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.