Home / 4,192.40-6,281.40-2,215.10

Finding the Fourth Proportional to 4,192.40, 6,281.40 and 2,215.10

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Solution

The fourth proportional to 4,192.40, 6,281.40 and 2,215.10 is: 3,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.40 : 6,281.40 = 2,215.10 : x
  2. Step 2: Convert to fraction form
    4,192.40/6,281.40 = 2,215.10/x
  3. Step 3: Cross multiply
    4,192.40x = 6,281.40 × 2,215.10
  4. Step 4: Simplify right side
    4,192.40x = 13,913,929.14
  5. Step 5: Solve for x
    x = 13,913,929.14/4,192.40
  6. Step 6: Final answer
    x = 3,318.85

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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.