Home / 5,171.13-7,136.23-3,875.31

Finding the Fourth Proportional to 5,171.13, 7,136.23 and 3,875.31

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Solution

The fourth proportional to 5,171.13, 7,136.23 and 3,875.31 is: 5,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.13 : 7,136.23 = 3,875.31 : x
  2. Step 2: Convert to fraction form
    5,171.13/7,136.23 = 3,875.31/x
  3. Step 3: Cross multiply
    5,171.13x = 7,136.23 × 3,875.31
  4. Step 4: Simplify right side
    5,171.13x = 27,655,093.79
  5. Step 5: Solve for x
    x = 27,655,093.79/5,171.13
  6. Step 6: Final answer
    x = 5,347.98

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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.