Home / 5,185.92-7,156.80-4,145.52

Finding the Fourth Proportional to 5,185.92, 7,156.80 and 4,145.52

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Solution

The fourth proportional to 5,185.92, 7,156.80 and 4,145.52 is: 5,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.92 : 7,156.80 = 4,145.52 : x
  2. Step 2: Convert to fraction form
    5,185.92/7,156.80 = 4,145.52/x
  3. Step 3: Cross multiply
    5,185.92x = 7,156.80 × 4,145.52
  4. Step 4: Simplify right side
    5,185.92x = 29,668,657.54
  5. Step 5: Solve for x
    x = 29,668,657.54/5,185.92
  6. Step 6: Final answer
    x = 5,721.00

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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.