Home / 3,132.80-4,323.04-1,806.24

Finding the Fourth Proportional to 3,132.80, 4,323.04 and 1,806.24

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Solution

The fourth proportional to 3,132.80, 4,323.04 and 1,806.24 is: 2,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.80 : 4,323.04 = 1,806.24 : x
  2. Step 2: Convert to fraction form
    3,132.80/4,323.04 = 1,806.24/x
  3. Step 3: Cross multiply
    3,132.80x = 4,323.04 × 1,806.24
  4. Step 4: Simplify right side
    3,132.80x = 7,808,447.77
  5. Step 5: Solve for x
    x = 7,808,447.77/3,132.80
  6. Step 6: Final answer
    x = 2,492.48

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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.