Home / 1,253.80-1,730.46-923.93

Finding the Fourth Proportional to 1,253.80, 1,730.46 and 923.93

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Solution

The fourth proportional to 1,253.80, 1,730.46 and 923.93 is: 1,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.80 : 1,730.46 = 923.93 : x
  2. Step 2: Convert to fraction form
    1,253.80/1,730.46 = 923.93/x
  3. Step 3: Cross multiply
    1,253.80x = 1,730.46 × 923.93
  4. Step 4: Simplify right side
    1,253.80x = 1,598,823.91
  5. Step 5: Solve for x
    x = 1,598,823.91/1,253.80
  6. Step 6: Final answer
    x = 1,275.18

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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.