Home / 5,430.64-8,145.96-1,923.22

Finding the Fourth Proportional to 5,430.64, 8,145.96 and 1,923.22

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Solution

The fourth proportional to 5,430.64, 8,145.96 and 1,923.22 is: 2,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.64 : 8,145.96 = 1,923.22 : x
  2. Step 2: Convert to fraction form
    5,430.64/8,145.96 = 1,923.22/x
  3. Step 3: Cross multiply
    5,430.64x = 8,145.96 × 1,923.22
  4. Step 4: Simplify right side
    5,430.64x = 15,666,473.19
  5. Step 5: Solve for x
    x = 15,666,473.19/5,430.64
  6. Step 6: Final answer
    x = 2,884.83

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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.