Home / 1,026.77-1,415.86-943.55

Finding the Fourth Proportional to 1,026.77, 1,415.86 and 943.55

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Solution

The fourth proportional to 1,026.77, 1,415.86 and 943.55 is: 1,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.77 : 1,415.86 = 943.55 : x
  2. Step 2: Convert to fraction form
    1,026.77/1,415.86 = 943.55/x
  3. Step 3: Cross multiply
    1,026.77x = 1,415.86 × 943.55
  4. Step 4: Simplify right side
    1,026.77x = 1,335,927.62
  5. Step 5: Solve for x
    x = 1,335,927.62/1,026.77
  6. Step 6: Final answer
    x = 1,301.10

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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.