Home / 3,124.71-4,688.58-1,479.30

Finding the Fourth Proportional to 3,124.71, 4,688.58 and 1,479.30

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Solution

The fourth proportional to 3,124.71, 4,688.58 and 1,479.30 is: 2,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.71 : 4,688.58 = 1,479.30 : x
  2. Step 2: Convert to fraction form
    3,124.71/4,688.58 = 1,479.30/x
  3. Step 3: Cross multiply
    3,124.71x = 4,688.58 × 1,479.30
  4. Step 4: Simplify right side
    3,124.71x = 6,935,816.39
  5. Step 5: Solve for x
    x = 6,935,816.39/3,124.71
  6. Step 6: Final answer
    x = 2,219.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.