Home / 1,613.77-2,227.85-1,090.51

Finding the Fourth Proportional to 1,613.77, 2,227.85 and 1,090.51

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Solution

The fourth proportional to 1,613.77, 2,227.85 and 1,090.51 is: 1,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.77 : 2,227.85 = 1,090.51 : x
  2. Step 2: Convert to fraction form
    1,613.77/2,227.85 = 1,090.51/x
  3. Step 3: Cross multiply
    1,613.77x = 2,227.85 × 1,090.51
  4. Step 4: Simplify right side
    1,613.77x = 2,429,487.25
  5. Step 5: Solve for x
    x = 2,429,487.25/1,613.77
  6. Step 6: Final answer
    x = 1,505.47

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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.