Home / 1,771.29-2,444.31-985.32

Finding the Fourth Proportional to 1,771.29, 2,444.31 and 985.32

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Solution

The fourth proportional to 1,771.29, 2,444.31 and 985.32 is: 1,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.29 : 2,444.31 = 985.32 : x
  2. Step 2: Convert to fraction form
    1,771.29/2,444.31 = 985.32/x
  3. Step 3: Cross multiply
    1,771.29x = 2,444.31 × 985.32
  4. Step 4: Simplify right side
    1,771.29x = 2,408,412.84
  5. Step 5: Solve for x
    x = 2,408,412.84/1,771.29
  6. Step 6: Final answer
    x = 1,359.70

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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.