Home / 4,282.55-6,429.90-2,642.30

Finding the Fourth Proportional to 4,282.55, 6,429.90 and 2,642.30

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Solution

The fourth proportional to 4,282.55, 6,429.90 and 2,642.30 is: 3,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,282.55 : 6,429.90 = 2,642.30 : x
  2. Step 2: Convert to fraction form
    4,282.55/6,429.90 = 2,642.30/x
  3. Step 3: Cross multiply
    4,282.55x = 6,429.90 × 2,642.30
  4. Step 4: Simplify right side
    4,282.55x = 16,989,724.77
  5. Step 5: Solve for x
    x = 16,989,724.77/4,282.55
  6. Step 6: Final answer
    x = 3,967.20

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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.