Home / 1,630.42-2,265.08-1,615.22

Finding the Fourth Proportional to 1,630.42, 2,265.08 and 1,615.22

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Solution

The fourth proportional to 1,630.42, 2,265.08 and 1,615.22 is: 2,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.42 : 2,265.08 = 1,615.22 : x
  2. Step 2: Convert to fraction form
    1,630.42/2,265.08 = 1,615.22/x
  3. Step 3: Cross multiply
    1,630.42x = 2,265.08 × 1,615.22
  4. Step 4: Simplify right side
    1,630.42x = 3,658,602.52
  5. Step 5: Solve for x
    x = 3,658,602.52/1,630.42
  6. Step 6: Final answer
    x = 2,243.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.