Home / 5,326.15-7,989.23-1,430.56

Finding the Fourth Proportional to 5,326.15, 7,989.23 and 1,430.56

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Solution

The fourth proportional to 5,326.15, 7,989.23 and 1,430.56 is: 2,145.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.15 : 7,989.23 = 1,430.56 : x
  2. Step 2: Convert to fraction form
    5,326.15/7,989.23 = 1,430.56/x
  3. Step 3: Cross multiply
    5,326.15x = 7,989.23 × 1,430.56
  4. Step 4: Simplify right side
    5,326.15x = 11,429,072.87
  5. Step 5: Solve for x
    x = 11,429,072.87/5,326.15
  6. Step 6: Final answer
    x = 2,145.84

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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.