Home / 4,620.28-6,894.64-4,128.04

Finding the Fourth Proportional to 4,620.28, 6,894.64 and 4,128.04

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Solution

The fourth proportional to 4,620.28, 6,894.64 and 4,128.04 is: 6,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.28 : 6,894.64 = 4,128.04 : x
  2. Step 2: Convert to fraction form
    4,620.28/6,894.64 = 4,128.04/x
  3. Step 3: Cross multiply
    4,620.28x = 6,894.64 × 4,128.04
  4. Step 4: Simplify right side
    4,620.28x = 28,461,349.71
  5. Step 5: Solve for x
    x = 28,461,349.71/4,620.28
  6. Step 6: Final answer
    x = 6,160.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.