Home / 3,690.40-5,536.02-1,225.04

Finding the Fourth Proportional to 3,690.40, 5,536.02 and 1,225.04

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Solution

The fourth proportional to 3,690.40, 5,536.02 and 1,225.04 is: 1,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.40 : 5,536.02 = 1,225.04 : x
  2. Step 2: Convert to fraction form
    3,690.40/5,536.02 = 1,225.04/x
  3. Step 3: Cross multiply
    3,690.40x = 5,536.02 × 1,225.04
  4. Step 4: Simplify right side
    3,690.40x = 6,781,845.94
  5. Step 5: Solve for x
    x = 6,781,845.94/3,690.40
  6. Step 6: Final answer
    x = 1,837.70

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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.