Home / 3,675.40-5,513.76-1,210.92

Finding the Fourth Proportional to 3,675.40, 5,513.76 and 1,210.92

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Solution

The fourth proportional to 3,675.40, 5,513.76 and 1,210.92 is: 1,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.40 : 5,513.76 = 1,210.92 : x
  2. Step 2: Convert to fraction form
    3,675.40/5,513.76 = 1,210.92/x
  3. Step 3: Cross multiply
    3,675.40x = 5,513.76 × 1,210.92
  4. Step 4: Simplify right side
    3,675.40x = 6,676,722.26
  5. Step 5: Solve for x
    x = 6,676,722.26/3,675.40
  6. Step 6: Final answer
    x = 1,816.60

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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.