Home / 3,210.24-4,808.64-2,820.72

Finding the Fourth Proportional to 3,210.24, 4,808.64 and 2,820.72

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Solution

The fourth proportional to 3,210.24, 4,808.64 and 2,820.72 is: 4,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.24 : 4,808.64 = 2,820.72 : x
  2. Step 2: Convert to fraction form
    3,210.24/4,808.64 = 2,820.72/x
  3. Step 3: Cross multiply
    3,210.24x = 4,808.64 × 2,820.72
  4. Step 4: Simplify right side
    3,210.24x = 13,563,827.02
  5. Step 5: Solve for x
    x = 13,563,827.02/3,210.24
  6. Step 6: Final answer
    x = 4,225.18

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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.