Home / 2,430.21-3,354.35-1,435.85

Finding the Fourth Proportional to 2,430.21, 3,354.35 and 1,435.85

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Solution

The fourth proportional to 2,430.21, 3,354.35 and 1,435.85 is: 1,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.21 : 3,354.35 = 1,435.85 : x
  2. Step 2: Convert to fraction form
    2,430.21/3,354.35 = 1,435.85/x
  3. Step 3: Cross multiply
    2,430.21x = 3,354.35 × 1,435.85
  4. Step 4: Simplify right side
    2,430.21x = 4,816,343.45
  5. Step 5: Solve for x
    x = 4,816,343.45/2,430.21
  6. Step 6: Final answer
    x = 1,981.86

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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.