Home / 5,478.31-8,219.18-2,317.19

Finding the Fourth Proportional to 5,478.31, 8,219.18 and 2,317.19

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Solution

The fourth proportional to 5,478.31, 8,219.18 and 2,317.19 is: 3,476.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.31 : 8,219.18 = 2,317.19 : x
  2. Step 2: Convert to fraction form
    5,478.31/8,219.18 = 2,317.19/x
  3. Step 3: Cross multiply
    5,478.31x = 8,219.18 × 2,317.19
  4. Step 4: Simplify right side
    5,478.31x = 19,045,366.40
  5. Step 5: Solve for x
    x = 19,045,366.40/5,478.31
  6. Step 6: Final answer
    x = 3,476.51

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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.