Home / 5,211.08-7,816.88-1,925.16

Finding the Fourth Proportional to 5,211.08, 7,816.88 and 1,925.16

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Solution

The fourth proportional to 5,211.08, 7,816.88 and 1,925.16 is: 2,887.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.08 : 7,816.88 = 1,925.16 : x
  2. Step 2: Convert to fraction form
    5,211.08/7,816.88 = 1,925.16/x
  3. Step 3: Cross multiply
    5,211.08x = 7,816.88 × 1,925.16
  4. Step 4: Simplify right side
    5,211.08x = 15,048,744.70
  5. Step 5: Solve for x
    x = 15,048,744.70/5,211.08
  6. Step 6: Final answer
    x = 2,887.84

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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.