Home / 5,436.90-8,191.59-4,917.48

Finding the Fourth Proportional to 5,436.90, 8,191.59 and 4,917.48

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Solution

The fourth proportional to 5,436.90, 8,191.59 and 4,917.48 is: 7,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.90 : 8,191.59 = 4,917.48 : x
  2. Step 2: Convert to fraction form
    5,436.90/8,191.59 = 4,917.48/x
  3. Step 3: Cross multiply
    5,436.90x = 8,191.59 × 4,917.48
  4. Step 4: Simplify right side
    5,436.90x = 40,281,979.99
  5. Step 5: Solve for x
    x = 40,281,979.99/5,436.90
  6. Step 6: Final answer
    x = 7,409.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.