Home / 5,153.54-7,111.44-2,915.50

Finding the Fourth Proportional to 5,153.54, 7,111.44 and 2,915.50

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Solution

The fourth proportional to 5,153.54, 7,111.44 and 2,915.50 is: 4,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.54 : 7,111.44 = 2,915.50 : x
  2. Step 2: Convert to fraction form
    5,153.54/7,111.44 = 2,915.50/x
  3. Step 3: Cross multiply
    5,153.54x = 7,111.44 × 2,915.50
  4. Step 4: Simplify right side
    5,153.54x = 20,733,403.32
  5. Step 5: Solve for x
    x = 20,733,403.32/5,153.54
  6. Step 6: Final answer
    x = 4,023.14

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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.