Home / 2,470.04-3,408.24-1,421.90

Finding the Fourth Proportional to 2,470.04, 3,408.24 and 1,421.90

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Solution

The fourth proportional to 2,470.04, 3,408.24 and 1,421.90 is: 1,961.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.04 : 3,408.24 = 1,421.90 : x
  2. Step 2: Convert to fraction form
    2,470.04/3,408.24 = 1,421.90/x
  3. Step 3: Cross multiply
    2,470.04x = 3,408.24 × 1,421.90
  4. Step 4: Simplify right side
    2,470.04x = 4,846,176.46
  5. Step 5: Solve for x
    x = 4,846,176.46/2,470.04
  6. Step 6: Final answer
    x = 1,961.98

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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.