Home / 5,173.75-7,140-2,935.63

Finding the Fourth Proportional to 5,173.75, 7,140 and 2,935.63

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Solution

The fourth proportional to 5,173.75, 7,140 and 2,935.63 is: 4,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.75 : 7,140 = 2,935.63 : x
  2. Step 2: Convert to fraction form
    5,173.75/7,140 = 2,935.63/x
  3. Step 3: Cross multiply
    5,173.75x = 7,140 × 2,935.63
  4. Step 4: Simplify right side
    5,173.75x = 20,960,398.20
  5. Step 5: Solve for x
    x = 20,960,398.20/5,173.75
  6. Step 6: Final answer
    x = 4,051.30

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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.