Home / 2,421.04-3,631.56-1,312.96

Finding the Fourth Proportional to 2,421.04, 3,631.56 and 1,312.96

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Solution

The fourth proportional to 2,421.04, 3,631.56 and 1,312.96 is: 1,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.04 : 3,631.56 = 1,312.96 : x
  2. Step 2: Convert to fraction form
    2,421.04/3,631.56 = 1,312.96/x
  3. Step 3: Cross multiply
    2,421.04x = 3,631.56 × 1,312.96
  4. Step 4: Simplify right side
    2,421.04x = 4,768,093.02
  5. Step 5: Solve for x
    x = 4,768,093.02/2,421.04
  6. Step 6: Final answer
    x = 1,969.44

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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.