Home / 5,136.39-7,088.32-2,897.83

Finding the Fourth Proportional to 5,136.39, 7,088.32 and 2,897.83

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Solution

The fourth proportional to 5,136.39, 7,088.32 and 2,897.83 is: 3,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.39 : 7,088.32 = 2,897.83 : x
  2. Step 2: Convert to fraction form
    5,136.39/7,088.32 = 2,897.83/x
  3. Step 3: Cross multiply
    5,136.39x = 7,088.32 × 2,897.83
  4. Step 4: Simplify right side
    5,136.39x = 20,540,746.35
  5. Step 5: Solve for x
    x = 20,540,746.35/5,136.39
  6. Step 6: Final answer
    x = 3,999.06

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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.