Home / 5,136.23-7,088.76-2,898.30

Finding the Fourth Proportional to 5,136.23, 7,088.76 and 2,898.30

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Solution

The fourth proportional to 5,136.23, 7,088.76 and 2,898.30 is: 4,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.23 : 7,088.76 = 2,898.30 : x
  2. Step 2: Convert to fraction form
    5,136.23/7,088.76 = 2,898.30/x
  3. Step 3: Cross multiply
    5,136.23x = 7,088.76 × 2,898.30
  4. Step 4: Simplify right side
    5,136.23x = 20,545,353.11
  5. Step 5: Solve for x
    x = 20,545,353.11/5,136.23
  6. Step 6: Final answer
    x = 4,000.09

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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.