Home / 2,915.76-4,020.25-2,382.67

Finding the Fourth Proportional to 2,915.76, 4,020.25 and 2,382.67

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Solution

The fourth proportional to 2,915.76, 4,020.25 and 2,382.67 is: 3,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.76 : 4,020.25 = 2,382.67 : x
  2. Step 2: Convert to fraction form
    2,915.76/4,020.25 = 2,382.67/x
  3. Step 3: Cross multiply
    2,915.76x = 4,020.25 × 2,382.67
  4. Step 4: Simplify right side
    2,915.76x = 9,578,929.07
  5. Step 5: Solve for x
    x = 9,578,929.07/2,915.76
  6. Step 6: Final answer
    x = 3,285.23

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1.5x scale

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.