Home / 5,541.40-7,631.58-5,420.44

Finding the Fourth Proportional to 5,541.40, 7,631.58 and 5,420.44

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Solution

The fourth proportional to 5,541.40, 7,631.58 and 5,420.44 is: 7,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.40 : 7,631.58 = 5,420.44 : x
  2. Step 2: Convert to fraction form
    5,541.40/7,631.58 = 5,420.44/x
  3. Step 3: Cross multiply
    5,541.40x = 7,631.58 × 5,420.44
  4. Step 4: Simplify right side
    5,541.40x = 41,366,521.50
  5. Step 5: Solve for x
    x = 41,366,521.50/5,541.40
  6. Step 6: Final answer
    x = 7,464.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.