Home / 4,631.76-6,390-2,860.26

Finding the Fourth Proportional to 4,631.76, 6,390 and 2,860.26

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Solution

The fourth proportional to 4,631.76, 6,390 and 2,860.26 is: 3,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.76 : 6,390 = 2,860.26 : x
  2. Step 2: Convert to fraction form
    4,631.76/6,390 = 2,860.26/x
  3. Step 3: Cross multiply
    4,631.76x = 6,390 × 2,860.26
  4. Step 4: Simplify right side
    4,631.76x = 18,277,061.40
  5. Step 5: Solve for x
    x = 18,277,061.40/4,631.76
  6. Step 6: Final answer
    x = 3,946.03

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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.