Home / 4,678.74-6,456.43-2,689.25

Finding the Fourth Proportional to 4,678.74, 6,456.43 and 2,689.25

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Solution

The fourth proportional to 4,678.74, 6,456.43 and 2,689.25 is: 3,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.74 : 6,456.43 = 2,689.25 : x
  2. Step 2: Convert to fraction form
    4,678.74/6,456.43 = 2,689.25/x
  3. Step 3: Cross multiply
    4,678.74x = 6,456.43 × 2,689.25
  4. Step 4: Simplify right side
    4,678.74x = 17,362,969.34
  5. Step 5: Solve for x
    x = 17,362,969.34/4,678.74
  6. Step 6: Final answer
    x = 3,711.04

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1.5x scale

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.