Home / 5,890.16-8,127.96-3,405.68

Finding the Fourth Proportional to 5,890.16, 8,127.96 and 3,405.68

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Solution

The fourth proportional to 5,890.16, 8,127.96 and 3,405.68 is: 4,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.16 : 8,127.96 = 3,405.68 : x
  2. Step 2: Convert to fraction form
    5,890.16/8,127.96 = 3,405.68/x
  3. Step 3: Cross multiply
    5,890.16x = 8,127.96 × 3,405.68
  4. Step 4: Simplify right side
    5,890.16x = 27,681,230.81
  5. Step 5: Solve for x
    x = 27,681,230.81/5,890.16
  6. Step 6: Final answer
    x = 4,699.57

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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.