Home / 4,948.61-7,422.91-1,438.83

Finding the Fourth Proportional to 4,948.61, 7,422.91 and 1,438.83

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Solution

The fourth proportional to 4,948.61, 7,422.91 and 1,438.83 is: 2,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.61 : 7,422.91 = 1,438.83 : x
  2. Step 2: Convert to fraction form
    4,948.61/7,422.91 = 1,438.83/x
  3. Step 3: Cross multiply
    4,948.61x = 7,422.91 × 1,438.83
  4. Step 4: Simplify right side
    4,948.61x = 10,680,302.00
  5. Step 5: Solve for x
    x = 10,680,302.00/4,948.61
  6. Step 6: Final answer
    x = 2,158.25

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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.