Home / 5,154.56-7,669.84-5,137.28

Finding the Fourth Proportional to 5,154.56, 7,669.84 and 5,137.28

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Solution

The fourth proportional to 5,154.56, 7,669.84 and 5,137.28 is: 7,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.56 : 7,669.84 = 5,137.28 : x
  2. Step 2: Convert to fraction form
    5,154.56/7,669.84 = 5,137.28/x
  3. Step 3: Cross multiply
    5,154.56x = 7,669.84 × 5,137.28
  4. Step 4: Simplify right side
    5,154.56x = 39,402,115.64
  5. Step 5: Solve for x
    x = 39,402,115.64/5,154.56
  6. Step 6: Final answer
    x = 7,644.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.