Home / 5,475.14-7,555.79-3,117.50

Finding the Fourth Proportional to 5,475.14, 7,555.79 and 3,117.50

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Solution

The fourth proportional to 5,475.14, 7,555.79 and 3,117.50 is: 4,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.14 : 7,555.79 = 3,117.50 : x
  2. Step 2: Convert to fraction form
    5,475.14/7,555.79 = 3,117.50/x
  3. Step 3: Cross multiply
    5,475.14x = 7,555.79 × 3,117.50
  4. Step 4: Simplify right side
    5,475.14x = 23,555,175.33
  5. Step 5: Solve for x
    x = 23,555,175.33/5,475.14
  6. Step 6: Final answer
    x = 4,302.21

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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.