Home / 1,133.28-1,698.96-927.36

Finding the Fourth Proportional to 1,133.28, 1,698.96 and 927.36

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Solution

The fourth proportional to 1,133.28, 1,698.96 and 927.36 is: 1,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.28 : 1,698.96 = 927.36 : x
  2. Step 2: Convert to fraction form
    1,133.28/1,698.96 = 927.36/x
  3. Step 3: Cross multiply
    1,133.28x = 1,698.96 × 927.36
  4. Step 4: Simplify right side
    1,133.28x = 1,575,547.55
  5. Step 5: Solve for x
    x = 1,575,547.55/1,133.28
  6. Step 6: Final answer
    x = 1,390.25

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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.