Home / 4,786.47-6,605.48-2,898.40

Finding the Fourth Proportional to 4,786.47, 6,605.48 and 2,898.40

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Solution

The fourth proportional to 4,786.47, 6,605.48 and 2,898.40 is: 3,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.47 : 6,605.48 = 2,898.40 : x
  2. Step 2: Convert to fraction form
    4,786.47/6,605.48 = 2,898.40/x
  3. Step 3: Cross multiply
    4,786.47x = 6,605.48 × 2,898.40
  4. Step 4: Simplify right side
    4,786.47x = 19,145,323.23
  5. Step 5: Solve for x
    x = 19,145,323.23/4,786.47
  6. Step 6: Final answer
    x = 3,999.88

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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.