Home / 3,424.60-4,719.04-2,478.75

Finding the Fourth Proportional to 3,424.60, 4,719.04 and 2,478.75

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Solution

The fourth proportional to 3,424.60, 4,719.04 and 2,478.75 is: 3,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.60 : 4,719.04 = 2,478.75 : x
  2. Step 2: Convert to fraction form
    3,424.60/4,719.04 = 2,478.75/x
  3. Step 3: Cross multiply
    3,424.60x = 4,719.04 × 2,478.75
  4. Step 4: Simplify right side
    3,424.60x = 11,697,320.40
  5. Step 5: Solve for x
    x = 11,697,320.40/3,424.60
  6. Step 6: Final answer
    x = 3,415.67

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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.