Home / 5,475.80-8,214.90-1,777.40

Finding the Fourth Proportional to 5,475.80, 8,214.90 and 1,777.40

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Solution

The fourth proportional to 5,475.80, 8,214.90 and 1,777.40 is: 2,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.80 : 8,214.90 = 1,777.40 : x
  2. Step 2: Convert to fraction form
    5,475.80/8,214.90 = 1,777.40/x
  3. Step 3: Cross multiply
    5,475.80x = 8,214.90 × 1,777.40
  4. Step 4: Simplify right side
    5,475.80x = 14,601,163.26
  5. Step 5: Solve for x
    x = 14,601,163.26/5,475.80
  6. Step 6: Final answer
    x = 2,666.49

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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.