Home / 5,359.15-8,038.27-1,661.30

Finding the Fourth Proportional to 5,359.15, 8,038.27 and 1,661.30

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Solution

The fourth proportional to 5,359.15, 8,038.27 and 1,661.30 is: 2,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.15 : 8,038.27 = 1,661.30 : x
  2. Step 2: Convert to fraction form
    5,359.15/8,038.27 = 1,661.30/x
  3. Step 3: Cross multiply
    5,359.15x = 8,038.27 × 1,661.30
  4. Step 4: Simplify right side
    5,359.15x = 13,353,977.95
  5. Step 5: Solve for x
    x = 13,353,977.95/5,359.15
  6. Step 6: Final answer
    x = 2,491.81

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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.