Home / 5,405.42-8,107.98-1,509.72

Finding the Fourth Proportional to 5,405.42, 8,107.98 and 1,509.72

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Solution

The fourth proportional to 5,405.42, 8,107.98 and 1,509.72 is: 2,264.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.42 : 8,107.98 = 1,509.72 : x
  2. Step 2: Convert to fraction form
    5,405.42/8,107.98 = 1,509.72/x
  3. Step 3: Cross multiply
    5,405.42x = 8,107.98 × 1,509.72
  4. Step 4: Simplify right side
    5,405.42x = 12,240,779.57
  5. Step 5: Solve for x
    x = 12,240,779.57/5,405.42
  6. Step 6: Final answer
    x = 2,264.54

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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.