Home / 4,631.75-6,390.08-3,039.28

Finding the Fourth Proportional to 4,631.75, 6,390.08 and 3,039.28

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Solution

The fourth proportional to 4,631.75, 6,390.08 and 3,039.28 is: 4,193.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.75 : 6,390.08 = 3,039.28 : x
  2. Step 2: Convert to fraction form
    4,631.75/6,390.08 = 3,039.28/x
  3. Step 3: Cross multiply
    4,631.75x = 6,390.08 × 3,039.28
  4. Step 4: Simplify right side
    4,631.75x = 19,421,211.17
  5. Step 5: Solve for x
    x = 19,421,211.17/4,631.75
  6. Step 6: Final answer
    x = 4,193.06

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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.