Home / 5,378.36-8,066.19-1,914.80

Finding the Fourth Proportional to 5,378.36, 8,066.19 and 1,914.80

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Solution

The fourth proportional to 5,378.36, 8,066.19 and 1,914.80 is: 2,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.36 : 8,066.19 = 1,914.80 : x
  2. Step 2: Convert to fraction form
    5,378.36/8,066.19 = 1,914.80/x
  3. Step 3: Cross multiply
    5,378.36x = 8,066.19 × 1,914.80
  4. Step 4: Simplify right side
    5,378.36x = 15,445,140.61
  5. Step 5: Solve for x
    x = 15,445,140.61/5,378.36
  6. Step 6: Final answer
    x = 2,871.72

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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.