Home / 2,117.52-3,173.40-1,571.76

Finding the Fourth Proportional to 2,117.52, 3,173.40 and 1,571.76

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Solution

The fourth proportional to 2,117.52, 3,173.40 and 1,571.76 is: 2,355.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.52 : 3,173.40 = 1,571.76 : x
  2. Step 2: Convert to fraction form
    2,117.52/3,173.40 = 1,571.76/x
  3. Step 3: Cross multiply
    2,117.52x = 3,173.40 × 1,571.76
  4. Step 4: Simplify right side
    2,117.52x = 4,987,823.18
  5. Step 5: Solve for x
    x = 4,987,823.18/2,117.52
  6. Step 6: Final answer
    x = 2,355.50

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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.