Home / 4,139.68-5,705.28-3,355.60

Finding the Fourth Proportional to 4,139.68, 5,705.28 and 3,355.60

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Solution

The fourth proportional to 4,139.68, 5,705.28 and 3,355.60 is: 4,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.68 : 5,705.28 = 3,355.60 : x
  2. Step 2: Convert to fraction form
    4,139.68/5,705.28 = 3,355.60/x
  3. Step 3: Cross multiply
    4,139.68x = 5,705.28 × 3,355.60
  4. Step 4: Simplify right side
    4,139.68x = 19,144,637.57
  5. Step 5: Solve for x
    x = 19,144,637.57/4,139.68
  6. Step 6: Final answer
    x = 4,624.67

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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.