Home / 5,140.30-7,705.77-1,852.66

Finding the Fourth Proportional to 5,140.30, 7,705.77 and 1,852.66

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Solution

The fourth proportional to 5,140.30, 7,705.77 and 1,852.66 is: 2,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.30 : 7,705.77 = 1,852.66 : x
  2. Step 2: Convert to fraction form
    5,140.30/7,705.77 = 1,852.66/x
  3. Step 3: Cross multiply
    5,140.30x = 7,705.77 × 1,852.66
  4. Step 4: Simplify right side
    5,140.30x = 14,276,171.85
  5. Step 5: Solve for x
    x = 14,276,171.85/5,140.30
  6. Step 6: Final answer
    x = 2,777.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.