Home / 2,890.53-4,330.76-1,426.05

Finding the Fourth Proportional to 2,890.53, 4,330.76 and 1,426.05

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Solution

The fourth proportional to 2,890.53, 4,330.76 and 1,426.05 is: 2,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.53 : 4,330.76 = 1,426.05 : x
  2. Step 2: Convert to fraction form
    2,890.53/4,330.76 = 1,426.05/x
  3. Step 3: Cross multiply
    2,890.53x = 4,330.76 × 1,426.05
  4. Step 4: Simplify right side
    2,890.53x = 6,175,873.17
  5. Step 5: Solve for x
    x = 6,175,873.17/2,890.53
  6. Step 6: Final answer
    x = 2,136.59

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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.