Home / 2,421.03-3,340.88-1,358.69

Finding the Fourth Proportional to 2,421.03, 3,340.88 and 1,358.69

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Solution

The fourth proportional to 2,421.03, 3,340.88 and 1,358.69 is: 1,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.03 : 3,340.88 = 1,358.69 : x
  2. Step 2: Convert to fraction form
    2,421.03/3,340.88 = 1,358.69/x
  3. Step 3: Cross multiply
    2,421.03x = 3,340.88 × 1,358.69
  4. Step 4: Simplify right side
    2,421.03x = 4,539,234.47
  5. Step 5: Solve for x
    x = 4,539,234.47/2,421.03
  6. Step 6: Final answer
    x = 1,874.92

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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.