Home / 5,254.62-7,248.08-3,128.64

Finding the Fourth Proportional to 5,254.62, 7,248.08 and 3,128.64

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Solution

The fourth proportional to 5,254.62, 7,248.08 and 3,128.64 is: 4,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.62 : 7,248.08 = 3,128.64 : x
  2. Step 2: Convert to fraction form
    5,254.62/7,248.08 = 3,128.64/x
  3. Step 3: Cross multiply
    5,254.62x = 7,248.08 × 3,128.64
  4. Step 4: Simplify right side
    5,254.62x = 22,676,617.37
  5. Step 5: Solve for x
    x = 22,676,617.37/5,254.62
  6. Step 6: Final answer
    x = 4,315.56

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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.