Home / 4,678.30-7,017.45-1,215.55

Finding the Fourth Proportional to 4,678.30, 7,017.45 and 1,215.55

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Solution

The fourth proportional to 4,678.30, 7,017.45 and 1,215.55 is: 1,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.30 : 7,017.45 = 1,215.55 : x
  2. Step 2: Convert to fraction form
    4,678.30/7,017.45 = 1,215.55/x
  3. Step 3: Cross multiply
    4,678.30x = 7,017.45 × 1,215.55
  4. Step 4: Simplify right side
    4,678.30x = 8,530,061.35
  5. Step 5: Solve for x
    x = 8,530,061.35/4,678.30
  6. Step 6: Final answer
    x = 1,823.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.