Home / 5,436.90-8,153.28-2,315.28

Finding the Fourth Proportional to 5,436.90, 8,153.28 and 2,315.28

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Solution

The fourth proportional to 5,436.90, 8,153.28 and 2,315.28 is: 3,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.90 : 8,153.28 = 2,315.28 : x
  2. Step 2: Convert to fraction form
    5,436.90/8,153.28 = 2,315.28/x
  3. Step 3: Cross multiply
    5,436.90x = 8,153.28 × 2,315.28
  4. Step 4: Simplify right side
    5,436.90x = 18,877,163.20
  5. Step 5: Solve for x
    x = 18,877,163.20/5,436.90
  6. Step 6: Final answer
    x = 3,472.05

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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.