Home / 2,919.68-4,377.46-1,457.80

Finding the Fourth Proportional to 2,919.68, 4,377.46 and 1,457.80

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Solution

The fourth proportional to 2,919.68, 4,377.46 and 1,457.80 is: 2,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.68 : 4,377.46 = 1,457.80 : x
  2. Step 2: Convert to fraction form
    2,919.68/4,377.46 = 1,457.80/x
  3. Step 3: Cross multiply
    2,919.68x = 4,377.46 × 1,457.80
  4. Step 4: Simplify right side
    2,919.68x = 6,381,461.19
  5. Step 5: Solve for x
    x = 6,381,461.19/2,919.68
  6. Step 6: Final answer
    x = 2,185.67

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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.