Home / 2,816.77-4,225.61-868.96

Finding the Fourth Proportional to 2,816.77, 4,225.61 and 868.96

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Solution

The fourth proportional to 2,816.77, 4,225.61 and 868.96 is: 1,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.77 : 4,225.61 = 868.96 : x
  2. Step 2: Convert to fraction form
    2,816.77/4,225.61 = 868.96/x
  3. Step 3: Cross multiply
    2,816.77x = 4,225.61 × 868.96
  4. Step 4: Simplify right side
    2,816.77x = 3,671,886.07
  5. Step 5: Solve for x
    x = 3,671,886.07/2,816.77
  6. Step 6: Final answer
    x = 1,303.58

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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.