Home / 5,378.18-8,069.76-2,457.38

Finding the Fourth Proportional to 5,378.18, 8,069.76 and 2,457.38

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Solution

The fourth proportional to 5,378.18, 8,069.76 and 2,457.38 is: 3,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.18 : 8,069.76 = 2,457.38 : x
  2. Step 2: Convert to fraction form
    5,378.18/8,069.76 = 2,457.38/x
  3. Step 3: Cross multiply
    5,378.18x = 8,069.76 × 2,457.38
  4. Step 4: Simplify right side
    5,378.18x = 19,830,466.83
  5. Step 5: Solve for x
    x = 19,830,466.83/5,378.18
  6. Step 6: Final answer
    x = 3,687.21

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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.