Home / 5,130.45-7,696.88-1,667.70

Finding the Fourth Proportional to 5,130.45, 7,696.88 and 1,667.70

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Solution

The fourth proportional to 5,130.45, 7,696.88 and 1,667.70 is: 2,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.45 : 7,696.88 = 1,667.70 : x
  2. Step 2: Convert to fraction form
    5,130.45/7,696.88 = 1,667.70/x
  3. Step 3: Cross multiply
    5,130.45x = 7,696.88 × 1,667.70
  4. Step 4: Simplify right side
    5,130.45x = 12,836,086.78
  5. Step 5: Solve for x
    x = 12,836,086.78/5,130.45
  6. Step 6: Final answer
    x = 2,501.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.