Home / 5,166.63-7,130.00-2,808.77

Finding the Fourth Proportional to 5,166.63, 7,130.00 and 2,808.77

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Solution

The fourth proportional to 5,166.63, 7,130.00 and 2,808.77 is: 3,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.63 : 7,130.00 = 2,808.77 : x
  2. Step 2: Convert to fraction form
    5,166.63/7,130.00 = 2,808.77/x
  3. Step 3: Cross multiply
    5,166.63x = 7,130.00 × 2,808.77
  4. Step 4: Simplify right side
    5,166.63x = 20,026,533.88
  5. Step 5: Solve for x
    x = 20,026,533.88/5,166.63
  6. Step 6: Final answer
    x = 3,876.13

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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.