Home / 5,168.09-7,130.36-2,929.15

Finding the Fourth Proportional to 5,168.09, 7,130.36 and 2,929.15

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Solution

The fourth proportional to 5,168.09, 7,130.36 and 2,929.15 is: 4,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.09 : 7,130.36 = 2,929.15 : x
  2. Step 2: Convert to fraction form
    5,168.09/7,130.36 = 2,929.15/x
  3. Step 3: Cross multiply
    5,168.09x = 7,130.36 × 2,929.15
  4. Step 4: Simplify right side
    5,168.09x = 20,885,893.99
  5. Step 5: Solve for x
    x = 20,885,893.99/5,168.09
  6. Step 6: Final answer
    x = 4,041.32

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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.