Home / 3,089.40-4,263.68-1,762.84

Finding the Fourth Proportional to 3,089.40, 4,263.68 and 1,762.84

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Solution

The fourth proportional to 3,089.40, 4,263.68 and 1,762.84 is: 2,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.40 : 4,263.68 = 1,762.84 : x
  2. Step 2: Convert to fraction form
    3,089.40/4,263.68 = 1,762.84/x
  3. Step 3: Cross multiply
    3,089.40x = 4,263.68 × 1,762.84
  4. Step 4: Simplify right side
    3,089.40x = 7,516,185.65
  5. Step 5: Solve for x
    x = 7,516,185.65/3,089.40
  6. Step 6: Final answer
    x = 2,432.89

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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.