Home / 5,453.78-7,526.21-3,215.66

Finding the Fourth Proportional to 5,453.78, 7,526.21 and 3,215.66

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Solution

The fourth proportional to 5,453.78, 7,526.21 and 3,215.66 is: 4,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.78 : 7,526.21 = 3,215.66 : x
  2. Step 2: Convert to fraction form
    5,453.78/7,526.21 = 3,215.66/x
  3. Step 3: Cross multiply
    5,453.78x = 7,526.21 × 3,215.66
  4. Step 4: Simplify right side
    5,453.78x = 24,201,678.74
  5. Step 5: Solve for x
    x = 24,201,678.74/5,453.78
  6. Step 6: Final answer
    x = 4,437.60

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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.