Home / 5,409.99-8,114.28-1,712.60

Finding the Fourth Proportional to 5,409.99, 8,114.28 and 1,712.60

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Solution

The fourth proportional to 5,409.99, 8,114.28 and 1,712.60 is: 2,568.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.99 : 8,114.28 = 1,712.60 : x
  2. Step 2: Convert to fraction form
    5,409.99/8,114.28 = 1,712.60/x
  3. Step 3: Cross multiply
    5,409.99x = 8,114.28 × 1,712.60
  4. Step 4: Simplify right side
    5,409.99x = 13,896,475.36
  5. Step 5: Solve for x
    x = 13,896,475.36/5,409.99
  6. Step 6: Final answer
    x = 2,568.67

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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.