Home / 5,085.48-7,012.80-3,406.62

Finding the Fourth Proportional to 5,085.48, 7,012.80 and 3,406.62

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Solution

The fourth proportional to 5,085.48, 7,012.80 and 3,406.62 is: 4,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.48 : 7,012.80 = 3,406.62 : x
  2. Step 2: Convert to fraction form
    5,085.48/7,012.80 = 3,406.62/x
  3. Step 3: Cross multiply
    5,085.48x = 7,012.80 × 3,406.62
  4. Step 4: Simplify right side
    5,085.48x = 23,889,944.74
  5. Step 5: Solve for x
    x = 23,889,944.74/5,085.48
  6. Step 6: Final answer
    x = 4,697.68

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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.