Home / 5,130.76-7,082.58-3,696.04

Finding the Fourth Proportional to 5,130.76, 7,082.58 and 3,696.04

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Solution

The fourth proportional to 5,130.76, 7,082.58 and 3,696.04 is: 5,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.76 : 7,082.58 = 3,696.04 : x
  2. Step 2: Convert to fraction form
    5,130.76/7,082.58 = 3,696.04/x
  3. Step 3: Cross multiply
    5,130.76x = 7,082.58 × 3,696.04
  4. Step 4: Simplify right side
    5,130.76x = 26,177,498.98
  5. Step 5: Solve for x
    x = 26,177,498.98/5,130.76
  6. Step 6: Final answer
    x = 5,102.07

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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.