Home / 5,436.32-8,153.60-1,539.81

Finding the Fourth Proportional to 5,436.32, 8,153.60 and 1,539.81

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Solution

The fourth proportional to 5,436.32, 8,153.60 and 1,539.81 is: 2,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.32 : 8,153.60 = 1,539.81 : x
  2. Step 2: Convert to fraction form
    5,436.32/8,153.60 = 1,539.81/x
  3. Step 3: Cross multiply
    5,436.32x = 8,153.60 × 1,539.81
  4. Step 4: Simplify right side
    5,436.32x = 12,554,987.12
  5. Step 5: Solve for x
    x = 12,554,987.12/5,436.32
  6. Step 6: Final answer
    x = 2,309.47

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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.