Home / 2,125.61-2,933.07-1,339.50

Finding the Fourth Proportional to 2,125.61, 2,933.07 and 1,339.50

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Solution

The fourth proportional to 2,125.61, 2,933.07 and 1,339.50 is: 1,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.61 : 2,933.07 = 1,339.50 : x
  2. Step 2: Convert to fraction form
    2,125.61/2,933.07 = 1,339.50/x
  3. Step 3: Cross multiply
    2,125.61x = 2,933.07 × 1,339.50
  4. Step 4: Simplify right side
    2,125.61x = 3,928,847.27
  5. Step 5: Solve for x
    x = 3,928,847.27/2,125.61
  6. Step 6: Final answer
    x = 1,848.34

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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.