Home / 6,128.28-8,445.53-4,356.81

Finding the Fourth Proportional to 6,128.28, 8,445.53 and 4,356.81

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Solution

The fourth proportional to 6,128.28, 8,445.53 and 4,356.81 is: 6,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.28 : 8,445.53 = 4,356.81 : x
  2. Step 2: Convert to fraction form
    6,128.28/8,445.53 = 4,356.81/x
  3. Step 3: Cross multiply
    6,128.28x = 8,445.53 × 4,356.81
  4. Step 4: Simplify right side
    6,128.28x = 36,795,580.45
  5. Step 5: Solve for x
    x = 36,795,580.45/6,128.28
  6. Step 6: Final answer
    x = 6,004.23

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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.