Home / 4,812.14-7,218.20-1,888.40

Finding the Fourth Proportional to 4,812.14, 7,218.20 and 1,888.40

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Solution

The fourth proportional to 4,812.14, 7,218.20 and 1,888.40 is: 2,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.14 : 7,218.20 = 1,888.40 : x
  2. Step 2: Convert to fraction form
    4,812.14/7,218.20 = 1,888.40/x
  3. Step 3: Cross multiply
    4,812.14x = 7,218.20 × 1,888.40
  4. Step 4: Simplify right side
    4,812.14x = 13,630,871.65
  5. Step 5: Solve for x
    x = 13,630,871.65/4,812.14
  6. Step 6: Final answer
    x = 2,832.60

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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.