Home / 5,136.94-7,089.29-2,898.91

Finding the Fourth Proportional to 5,136.94, 7,089.29 and 2,898.91

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Solution

The fourth proportional to 5,136.94, 7,089.29 and 2,898.91 is: 4,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.94 : 7,089.29 = 2,898.91 : x
  2. Step 2: Convert to fraction form
    5,136.94/7,089.29 = 2,898.91/x
  3. Step 3: Cross multiply
    5,136.94x = 7,089.29 × 2,898.91
  4. Step 4: Simplify right side
    5,136.94x = 20,551,213.67
  5. Step 5: Solve for x
    x = 20,551,213.67/5,136.94
  6. Step 6: Final answer
    x = 4,000.67

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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.