Home / 4,678.36-6,456.08-2,689.54

Finding the Fourth Proportional to 4,678.36, 6,456.08 and 2,689.54

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Solution

The fourth proportional to 4,678.36, 6,456.08 and 2,689.54 is: 3,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.36 : 6,456.08 = 2,689.54 : x
  2. Step 2: Convert to fraction form
    4,678.36/6,456.08 = 2,689.54/x
  3. Step 3: Cross multiply
    4,678.36x = 6,456.08 × 2,689.54
  4. Step 4: Simplify right side
    4,678.36x = 17,363,885.40
  5. Step 5: Solve for x
    x = 17,363,885.40/4,678.36
  6. Step 6: Final answer
    x = 3,711.53

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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.