Home / 3,132.61-4,322.99-1,806.31

Finding the Fourth Proportional to 3,132.61, 4,322.99 and 1,806.31

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Solution

The fourth proportional to 3,132.61, 4,322.99 and 1,806.31 is: 2,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.61 : 4,322.99 = 1,806.31 : x
  2. Step 2: Convert to fraction form
    3,132.61/4,322.99 = 1,806.31/x
  3. Step 3: Cross multiply
    3,132.61x = 4,322.99 × 1,806.31
  4. Step 4: Simplify right side
    3,132.61x = 7,808,660.07
  5. Step 5: Solve for x
    x = 7,808,660.07/3,132.61
  6. Step 6: Final answer
    x = 2,492.70

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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.