Home / 5,430.24-8,145.34-1,966.68

Finding the Fourth Proportional to 5,430.24, 8,145.34 and 1,966.68

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Solution

The fourth proportional to 5,430.24, 8,145.34 and 1,966.68 is: 2,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.24 : 8,145.34 = 1,966.68 : x
  2. Step 2: Convert to fraction form
    5,430.24/8,145.34 = 1,966.68/x
  3. Step 3: Cross multiply
    5,430.24x = 8,145.34 × 1,966.68
  4. Step 4: Simplify right side
    5,430.24x = 16,019,277.27
  5. Step 5: Solve for x
    x = 16,019,277.27/5,430.24
  6. Step 6: Final answer
    x = 2,950.01

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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.