Home / 4,678.61-6,456.22-2,910.20

Finding the Fourth Proportional to 4,678.61, 6,456.22 and 2,910.20

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Solution

The fourth proportional to 4,678.61, 6,456.22 and 2,910.20 is: 4,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.61 : 6,456.22 = 2,910.20 : x
  2. Step 2: Convert to fraction form
    4,678.61/6,456.22 = 2,910.20/x
  3. Step 3: Cross multiply
    4,678.61x = 6,456.22 × 2,910.20
  4. Step 4: Simplify right side
    4,678.61x = 18,788,851.89
  5. Step 5: Solve for x
    x = 18,788,851.89/4,678.61
  6. Step 6: Final answer
    x = 4,015.91

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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.