Home / 5,271.90-7,278.59-3,285.38

Finding the Fourth Proportional to 5,271.90, 7,278.59 and 3,285.38

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Solution

The fourth proportional to 5,271.90, 7,278.59 and 3,285.38 is: 4,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.90 : 7,278.59 = 3,285.38 : x
  2. Step 2: Convert to fraction form
    5,271.90/7,278.59 = 3,285.38/x
  3. Step 3: Cross multiply
    5,271.90x = 7,278.59 × 3,285.38
  4. Step 4: Simplify right side
    5,271.90x = 23,912,881.19
  5. Step 5: Solve for x
    x = 23,912,881.19/5,271.90
  6. Step 6: Final answer
    x = 4,535.91

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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.