Home / 4,281.40-6,422.10-2,438.20

Finding the Fourth Proportional to 4,281.40, 6,422.10 and 2,438.20

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Solution

The fourth proportional to 4,281.40, 6,422.10 and 2,438.20 is: 3,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.40 : 6,422.10 = 2,438.20 : x
  2. Step 2: Convert to fraction form
    4,281.40/6,422.10 = 2,438.20/x
  3. Step 3: Cross multiply
    4,281.40x = 6,422.10 × 2,438.20
  4. Step 4: Simplify right side
    4,281.40x = 15,658,364.22
  5. Step 5: Solve for x
    x = 15,658,364.22/4,281.40
  6. Step 6: Final answer
    x = 3,657.30

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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.