Home / 2,421.71-3,341.88-1,359.41

Finding the Fourth Proportional to 2,421.71, 3,341.88 and 1,359.41

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Solution

The fourth proportional to 2,421.71, 3,341.88 and 1,359.41 is: 1,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.71 : 3,341.88 = 1,359.41 : x
  2. Step 2: Convert to fraction form
    2,421.71/3,341.88 = 1,359.41/x
  3. Step 3: Cross multiply
    2,421.71x = 3,341.88 × 1,359.41
  4. Step 4: Simplify right side
    2,421.71x = 4,542,985.09
  5. Step 5: Solve for x
    x = 4,542,985.09/2,421.71
  6. Step 6: Final answer
    x = 1,875.94

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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.