Home / 3,089.38-4,263.75-1,762.78

Finding the Fourth Proportional to 3,089.38, 4,263.75 and 1,762.78

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Solution

The fourth proportional to 3,089.38, 4,263.75 and 1,762.78 is: 2,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.38 : 4,263.75 = 1,762.78 : x
  2. Step 2: Convert to fraction form
    3,089.38/4,263.75 = 1,762.78/x
  3. Step 3: Cross multiply
    3,089.38x = 4,263.75 × 1,762.78
  4. Step 4: Simplify right side
    3,089.38x = 7,516,053.23
  5. Step 5: Solve for x
    x = 7,516,053.23/3,089.38
  6. Step 6: Final answer
    x = 2,432.87

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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.