Home / 4,654.69-6,420.87-2,860.92

Finding the Fourth Proportional to 4,654.69, 6,420.87 and 2,860.92

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Solution

The fourth proportional to 4,654.69, 6,420.87 and 2,860.92 is: 3,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,654.69 : 6,420.87 = 2,860.92 : x
  2. Step 2: Convert to fraction form
    4,654.69/6,420.87 = 2,860.92/x
  3. Step 3: Cross multiply
    4,654.69x = 6,420.87 × 2,860.92
  4. Step 4: Simplify right side
    4,654.69x = 18,369,595.40
  5. Step 5: Solve for x
    x = 18,369,595.40/4,654.69
  6. Step 6: Final answer
    x = 3,946.47

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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.