Home / 2,784.88-4,177.08-1,688.92

Finding the Fourth Proportional to 2,784.88, 4,177.08 and 1,688.92

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Solution

The fourth proportional to 2,784.88, 4,177.08 and 1,688.92 is: 2,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.88 : 4,177.08 = 1,688.92 : x
  2. Step 2: Convert to fraction form
    2,784.88/4,177.08 = 1,688.92/x
  3. Step 3: Cross multiply
    2,784.88x = 4,177.08 × 1,688.92
  4. Step 4: Simplify right side
    2,784.88x = 7,054,753.95
  5. Step 5: Solve for x
    x = 7,054,753.95/2,784.88
  6. Step 6: Final answer
    x = 2,533.23

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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.