Home / 7,239.79-10,852.35-2,860.30

Finding the Fourth Proportional to 7,239.79, 10,852.35 and 2,860.30

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Solution

The fourth proportional to 7,239.79, 10,852.35 and 2,860.30 is: 4,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.79 : 10,852.35 = 2,860.30 : x
  2. Step 2: Convert to fraction form
    7,239.79/10,852.35 = 2,860.30/x
  3. Step 3: Cross multiply
    7,239.79x = 10,852.35 × 2,860.30
  4. Step 4: Simplify right side
    7,239.79x = 31,040,976.71
  5. Step 5: Solve for x
    x = 31,040,976.71/7,239.79
  6. Step 6: Final answer
    x = 4,287.55

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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.