Home / 5,911.50-8,157.87-3,677.58

Finding the Fourth Proportional to 5,911.50, 8,157.87 and 3,677.58

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Solution

The fourth proportional to 5,911.50, 8,157.87 and 3,677.58 is: 5,075.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.50 : 8,157.87 = 3,677.58 : x
  2. Step 2: Convert to fraction form
    5,911.50/8,157.87 = 3,677.58/x
  3. Step 3: Cross multiply
    5,911.50x = 8,157.87 × 3,677.58
  4. Step 4: Simplify right side
    5,911.50x = 30,001,219.55
  5. Step 5: Solve for x
    x = 30,001,219.55/5,911.50
  6. Step 6: Final answer
    x = 5,075.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.