Home / 5,315.29-7,975.68-2,392.99

Finding the Fourth Proportional to 5,315.29, 7,975.68 and 2,392.99

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Solution

The fourth proportional to 5,315.29, 7,975.68 and 2,392.99 is: 3,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.29 : 7,975.68 = 2,392.99 : x
  2. Step 2: Convert to fraction form
    5,315.29/7,975.68 = 2,392.99/x
  3. Step 3: Cross multiply
    5,315.29x = 7,975.68 × 2,392.99
  4. Step 4: Simplify right side
    5,315.29x = 19,085,722.48
  5. Step 5: Solve for x
    x = 19,085,722.48/5,315.29
  6. Step 6: Final answer
    x = 3,590.72

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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.