Home / 7,271.40-10,036.10-4,286.14

Finding the Fourth Proportional to 7,271.40, 10,036.10 and 4,286.14

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Solution

The fourth proportional to 7,271.40, 10,036.10 and 4,286.14 is: 5,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.40 : 10,036.10 = 4,286.14 : x
  2. Step 2: Convert to fraction form
    7,271.40/10,036.10 = 4,286.14/x
  3. Step 3: Cross multiply
    7,271.40x = 10,036.10 × 4,286.14
  4. Step 4: Simplify right side
    7,271.40x = 43,016,129.65
  5. Step 5: Solve for x
    x = 43,016,129.65/7,271.40
  6. Step 6: Final answer
    x = 5,915.80

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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.