Home / 6,109.64-8,436.90-5,782.28

Finding the Fourth Proportional to 6,109.64, 8,436.90 and 5,782.28

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Solution

The fourth proportional to 6,109.64, 8,436.90 and 5,782.28 is: 7,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.64 : 8,436.90 = 5,782.28 : x
  2. Step 2: Convert to fraction form
    6,109.64/8,436.90 = 5,782.28/x
  3. Step 3: Cross multiply
    6,109.64x = 8,436.90 × 5,782.28
  4. Step 4: Simplify right side
    6,109.64x = 48,784,518.13
  5. Step 5: Solve for x
    x = 48,784,518.13/6,109.64
  6. Step 6: Final answer
    x = 7,984.84

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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.