Home / 1,184.51-1,636.79-1,127.61

Finding the Fourth Proportional to 1,184.51, 1,636.79 and 1,127.61

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Solution

The fourth proportional to 1,184.51, 1,636.79 and 1,127.61 is: 1,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.51 : 1,636.79 = 1,127.61 : x
  2. Step 2: Convert to fraction form
    1,184.51/1,636.79 = 1,127.61/x
  3. Step 3: Cross multiply
    1,184.51x = 1,636.79 × 1,127.61
  4. Step 4: Simplify right side
    1,184.51x = 1,845,655.41
  5. Step 5: Solve for x
    x = 1,845,655.41/1,184.51
  6. Step 6: Final answer
    x = 1,558.16

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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.