Home / 1,678.16-2,315.93-1,014.88

Finding the Fourth Proportional to 1,678.16, 2,315.93 and 1,014.88

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Solution

The fourth proportional to 1,678.16, 2,315.93 and 1,014.88 is: 1,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.16 : 2,315.93 = 1,014.88 : x
  2. Step 2: Convert to fraction form
    1,678.16/2,315.93 = 1,014.88/x
  3. Step 3: Cross multiply
    1,678.16x = 2,315.93 × 1,014.88
  4. Step 4: Simplify right side
    1,678.16x = 2,350,391.04
  5. Step 5: Solve for x
    x = 2,350,391.04/1,678.16
  6. Step 6: Final answer
    x = 1,400.58

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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.