Home / 5,116.64-7,674.95-2,155.55

Finding the Fourth Proportional to 5,116.64, 7,674.95 and 2,155.55

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Solution

The fourth proportional to 5,116.64, 7,674.95 and 2,155.55 is: 3,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.64 : 7,674.95 = 2,155.55 : x
  2. Step 2: Convert to fraction form
    5,116.64/7,674.95 = 2,155.55/x
  3. Step 3: Cross multiply
    5,116.64x = 7,674.95 × 2,155.55
  4. Step 4: Simplify right side
    5,116.64x = 16,543,705.49
  5. Step 5: Solve for x
    x = 16,543,705.49/5,116.64
  6. Step 6: Final answer
    x = 3,233.32

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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.