Home / 5,152.12-7,098.58-3,638.99

Finding the Fourth Proportional to 5,152.12, 7,098.58 and 3,638.99

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Solution

The fourth proportional to 5,152.12, 7,098.58 and 3,638.99 is: 5,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.12 : 7,098.58 = 3,638.99 : x
  2. Step 2: Convert to fraction form
    5,152.12/7,098.58 = 3,638.99/x
  3. Step 3: Cross multiply
    5,152.12x = 7,098.58 × 3,638.99
  4. Step 4: Simplify right side
    5,152.12x = 25,831,661.63
  5. Step 5: Solve for x
    x = 25,831,661.63/5,152.12
  6. Step 6: Final answer
    x = 5,013.79

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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.