Home / 4,389.60-6,574.80-2,655.20

Finding the Fourth Proportional to 4,389.60, 6,574.80 and 2,655.20

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Solution

The fourth proportional to 4,389.60, 6,574.80 and 2,655.20 is: 3,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.60 : 6,574.80 = 2,655.20 : x
  2. Step 2: Convert to fraction form
    4,389.60/6,574.80 = 2,655.20/x
  3. Step 3: Cross multiply
    4,389.60x = 6,574.80 × 2,655.20
  4. Step 4: Simplify right side
    4,389.60x = 17,457,408.96
  5. Step 5: Solve for x
    x = 17,457,408.96/4,389.60
  6. Step 6: Final answer
    x = 3,976.99

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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.