Home / 3,929.49-5,421.81-2,437.47

Finding the Fourth Proportional to 3,929.49, 5,421.81 and 2,437.47

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Solution

The fourth proportional to 3,929.49, 5,421.81 and 2,437.47 is: 3,363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.49 : 5,421.81 = 2,437.47 : x
  2. Step 2: Convert to fraction form
    3,929.49/5,421.81 = 2,437.47/x
  3. Step 3: Cross multiply
    3,929.49x = 5,421.81 × 2,437.47
  4. Step 4: Simplify right side
    3,929.49x = 13,215,499.22
  5. Step 5: Solve for x
    x = 13,215,499.22/3,929.49
  6. Step 6: Final answer
    x = 3,363.16

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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.