Home / 1,771.17-2,444.33-985.21

Finding the Fourth Proportional to 1,771.17, 2,444.33 and 985.21

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Solution

The fourth proportional to 1,771.17, 2,444.33 and 985.21 is: 1,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.17 : 2,444.33 = 985.21 : x
  2. Step 2: Convert to fraction form
    1,771.17/2,444.33 = 985.21/x
  3. Step 3: Cross multiply
    1,771.17x = 2,444.33 × 985.21
  4. Step 4: Simplify right side
    1,771.17x = 2,408,178.36
  5. Step 5: Solve for x
    x = 2,408,178.36/1,771.17
  6. Step 6: Final answer
    x = 1,359.65

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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.