Home / 4,300.20-6,445.26-1,986.84

Finding the Fourth Proportional to 4,300.20, 6,445.26 and 1,986.84

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Solution

The fourth proportional to 4,300.20, 6,445.26 and 1,986.84 is: 2,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,300.20 : 6,445.26 = 1,986.84 : x
  2. Step 2: Convert to fraction form
    4,300.20/6,445.26 = 1,986.84/x
  3. Step 3: Cross multiply
    4,300.20x = 6,445.26 × 1,986.84
  4. Step 4: Simplify right side
    4,300.20x = 12,805,700.38
  5. Step 5: Solve for x
    x = 12,805,700.38/4,300.20
  6. Step 6: Final answer
    x = 2,977.93

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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.