Home / 5,117.79-7,064.90-3,859.35

Finding the Fourth Proportional to 5,117.79, 7,064.90 and 3,859.35

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Solution

The fourth proportional to 5,117.79, 7,064.90 and 3,859.35 is: 5,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.79 : 7,064.90 = 3,859.35 : x
  2. Step 2: Convert to fraction form
    5,117.79/7,064.90 = 3,859.35/x
  3. Step 3: Cross multiply
    5,117.79x = 7,064.90 × 3,859.35
  4. Step 4: Simplify right side
    5,117.79x = 27,265,902.52
  5. Step 5: Solve for x
    x = 27,265,902.52/5,117.79
  6. Step 6: Final answer
    x = 5,327.67

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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.