Home / 5,174.34-7,140.51-2,816.52

Finding the Fourth Proportional to 5,174.34, 7,140.51 and 2,816.52

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Solution

The fourth proportional to 5,174.34, 7,140.51 and 2,816.52 is: 3,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.34 : 7,140.51 = 2,816.52 : x
  2. Step 2: Convert to fraction form
    5,174.34/7,140.51 = 2,816.52/x
  3. Step 3: Cross multiply
    5,174.34x = 7,140.51 × 2,816.52
  4. Step 4: Simplify right side
    5,174.34x = 20,111,389.23
  5. Step 5: Solve for x
    x = 20,111,389.23/5,174.34
  6. Step 6: Final answer
    x = 3,886.75

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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.