Home / 5,628.01-8,440.71-1,678.91

Finding the Fourth Proportional to 5,628.01, 8,440.71 and 1,678.91

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Solution

The fourth proportional to 5,628.01, 8,440.71 and 1,678.91 is: 2,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.01 : 8,440.71 = 1,678.91 : x
  2. Step 2: Convert to fraction form
    5,628.01/8,440.71 = 1,678.91/x
  3. Step 3: Cross multiply
    5,628.01x = 8,440.71 × 1,678.91
  4. Step 4: Simplify right side
    5,628.01x = 14,171,192.43
  5. Step 5: Solve for x
    x = 14,171,192.43/5,628.01
  6. Step 6: Final answer
    x = 2,517.98

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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.