Home / 1,681.24-2,320.31-1,018.07

Finding the Fourth Proportional to 1,681.24, 2,320.31 and 1,018.07

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Solution

The fourth proportional to 1,681.24, 2,320.31 and 1,018.07 is: 1,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.24 : 2,320.31 = 1,018.07 : x
  2. Step 2: Convert to fraction form
    1,681.24/2,320.31 = 1,018.07/x
  3. Step 3: Cross multiply
    1,681.24x = 2,320.31 × 1,018.07
  4. Step 4: Simplify right side
    1,681.24x = 2,362,246.35
  5. Step 5: Solve for x
    x = 2,362,246.35/1,681.24
  6. Step 6: Final answer
    x = 1,405.06

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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.