Home / 5,451.45-8,177.16-1,347.45

Finding the Fourth Proportional to 5,451.45, 8,177.16 and 1,347.45

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Solution

The fourth proportional to 5,451.45, 8,177.16 and 1,347.45 is: 2,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.45 : 8,177.16 = 1,347.45 : x
  2. Step 2: Convert to fraction form
    5,451.45/8,177.16 = 1,347.45/x
  3. Step 3: Cross multiply
    5,451.45x = 8,177.16 × 1,347.45
  4. Step 4: Simplify right side
    5,451.45x = 11,018,314.24
  5. Step 5: Solve for x
    x = 11,018,314.24/5,451.45
  6. Step 6: Final answer
    x = 2,021.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.