Home / 1,506.66-2,256.31-921.93

Finding the Fourth Proportional to 1,506.66, 2,256.31 and 921.93

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Solution

The fourth proportional to 1,506.66, 2,256.31 and 921.93 is: 1,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.66 : 2,256.31 = 921.93 : x
  2. Step 2: Convert to fraction form
    1,506.66/2,256.31 = 921.93/x
  3. Step 3: Cross multiply
    1,506.66x = 2,256.31 × 921.93
  4. Step 4: Simplify right side
    1,506.66x = 2,080,159.88
  5. Step 5: Solve for x
    x = 2,080,159.88/1,506.66
  6. Step 6: Final answer
    x = 1,380.64

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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.