Home / 5,438.03-8,156.70-1,542.06

Finding the Fourth Proportional to 5,438.03, 8,156.70 and 1,542.06

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Solution

The fourth proportional to 5,438.03, 8,156.70 and 1,542.06 is: 2,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.03 : 8,156.70 = 1,542.06 : x
  2. Step 2: Convert to fraction form
    5,438.03/8,156.70 = 1,542.06/x
  3. Step 3: Cross multiply
    5,438.03x = 8,156.70 × 1,542.06
  4. Step 4: Simplify right side
    5,438.03x = 12,578,120.80
  5. Step 5: Solve for x
    x = 12,578,120.80/5,438.03
  6. Step 6: Final answer
    x = 2,312.99

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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.