Home / 3,089.84-4,264.50-1,971.26

Finding the Fourth Proportional to 3,089.84, 4,264.50 and 1,971.26

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Solution

The fourth proportional to 3,089.84, 4,264.50 and 1,971.26 is: 2,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.84 : 4,264.50 = 1,971.26 : x
  2. Step 2: Convert to fraction form
    3,089.84/4,264.50 = 1,971.26/x
  3. Step 3: Cross multiply
    3,089.84x = 4,264.50 × 1,971.26
  4. Step 4: Simplify right side
    3,089.84x = 8,406,438.27
  5. Step 5: Solve for x
    x = 8,406,438.27/3,089.84
  6. Step 6: Final answer
    x = 2,720.67

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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.