Home / 5,486.40-8,225.28-2,561.76

Finding the Fourth Proportional to 5,486.40, 8,225.28 and 2,561.76

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Solution

The fourth proportional to 5,486.40, 8,225.28 and 2,561.76 is: 3,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.40 : 8,225.28 = 2,561.76 : x
  2. Step 2: Convert to fraction form
    5,486.40/8,225.28 = 2,561.76/x
  3. Step 3: Cross multiply
    5,486.40x = 8,225.28 × 2,561.76
  4. Step 4: Simplify right side
    5,486.40x = 21,071,193.29
  5. Step 5: Solve for x
    x = 21,071,193.29/5,486.40
  6. Step 6: Final answer
    x = 3,840.62

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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.