Home / 5,148.50-7,717.95-2,805.08

Finding the Fourth Proportional to 5,148.50, 7,717.95 and 2,805.08

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Solution

The fourth proportional to 5,148.50, 7,717.95 and 2,805.08 is: 4,205.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.50 : 7,717.95 = 2,805.08 : x
  2. Step 2: Convert to fraction form
    5,148.50/7,717.95 = 2,805.08/x
  3. Step 3: Cross multiply
    5,148.50x = 7,717.95 × 2,805.08
  4. Step 4: Simplify right side
    5,148.50x = 21,649,428.60
  5. Step 5: Solve for x
    x = 21,649,428.60/5,148.50
  6. Step 6: Final answer
    x = 4,205.00

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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.