Home / 5,188.81-7,160.53-2,830.95

Finding the Fourth Proportional to 5,188.81, 7,160.53 and 2,830.95

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Solution

The fourth proportional to 5,188.81, 7,160.53 and 2,830.95 is: 3,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.81 : 7,160.53 = 2,830.95 : x
  2. Step 2: Convert to fraction form
    5,188.81/7,160.53 = 2,830.95/x
  3. Step 3: Cross multiply
    5,188.81x = 7,160.53 × 2,830.95
  4. Step 4: Simplify right side
    5,188.81x = 20,271,102.40
  5. Step 5: Solve for x
    x = 20,271,102.40/5,188.81
  6. Step 6: Final answer
    x = 3,906.70

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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.