Home / 2,421.30-3,341.26-1,358.92

Finding the Fourth Proportional to 2,421.30, 3,341.26 and 1,358.92

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Solution

The fourth proportional to 2,421.30, 3,341.26 and 1,358.92 is: 1,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.30 : 3,341.26 = 1,358.92 : x
  2. Step 2: Convert to fraction form
    2,421.30/3,341.26 = 1,358.92/x
  3. Step 3: Cross multiply
    2,421.30x = 3,341.26 × 1,358.92
  4. Step 4: Simplify right side
    2,421.30x = 4,540,505.04
  5. Step 5: Solve for x
    x = 4,540,505.04/2,421.30
  6. Step 6: Final answer
    x = 1,875.23

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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.