Home / 3,366.48-4,644-2,421.12

Finding the Fourth Proportional to 3,366.48, 4,644 and 2,421.12

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Solution

The fourth proportional to 3,366.48, 4,644 and 2,421.12 is: 3,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.48 : 4,644 = 2,421.12 : x
  2. Step 2: Convert to fraction form
    3,366.48/4,644 = 2,421.12/x
  3. Step 3: Cross multiply
    3,366.48x = 4,644 × 2,421.12
  4. Step 4: Simplify right side
    3,366.48x = 11,243,681.28
  5. Step 5: Solve for x
    x = 11,243,681.28/3,366.48
  6. Step 6: Final answer
    x = 3,339.89

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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.