Home / 4,188.12-6,276.78-2,430.42

Finding the Fourth Proportional to 4,188.12, 6,276.78 and 2,430.42

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Solution

The fourth proportional to 4,188.12, 6,276.78 and 2,430.42 is: 3,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.12 : 6,276.78 = 2,430.42 : x
  2. Step 2: Convert to fraction form
    4,188.12/6,276.78 = 2,430.42/x
  3. Step 3: Cross multiply
    4,188.12x = 6,276.78 × 2,430.42
  4. Step 4: Simplify right side
    4,188.12x = 15,255,211.65
  5. Step 5: Solve for x
    x = 15,255,211.65/4,188.12
  6. Step 6: Final answer
    x = 3,642.50

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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.