Home / 2,688.96-4,013.38-2,623.34

Finding the Fourth Proportional to 2,688.96, 4,013.38 and 2,623.34

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Solution

The fourth proportional to 2,688.96, 4,013.38 and 2,623.34 is: 3,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.96 : 4,013.38 = 2,623.34 : x
  2. Step 2: Convert to fraction form
    2,688.96/4,013.38 = 2,623.34/x
  3. Step 3: Cross multiply
    2,688.96x = 4,013.38 × 2,623.34
  4. Step 4: Simplify right side
    2,688.96x = 10,528,460.29
  5. Step 5: Solve for x
    x = 10,528,460.29/2,688.96
  6. Step 6: Final answer
    x = 3,915.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.