Home / 5,136.47-7,088.08-3,011.72

Finding the Fourth Proportional to 5,136.47, 7,088.08 and 3,011.72

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Solution

The fourth proportional to 5,136.47, 7,088.08 and 3,011.72 is: 4,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.47 : 7,088.08 = 3,011.72 : x
  2. Step 2: Convert to fraction form
    5,136.47/7,088.08 = 3,011.72/x
  3. Step 3: Cross multiply
    5,136.47x = 7,088.08 × 3,011.72
  4. Step 4: Simplify right side
    5,136.47x = 21,347,269.33
  5. Step 5: Solve for x
    x = 21,347,269.33/5,136.47
  6. Step 6: Final answer
    x = 4,156.02

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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.