Home / 2,210.40-3,307.68-1,429.92

Finding the Fourth Proportional to 2,210.40, 3,307.68 and 1,429.92

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Solution

The fourth proportional to 2,210.40, 3,307.68 and 1,429.92 is: 2,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.40 : 3,307.68 = 1,429.92 : x
  2. Step 2: Convert to fraction form
    2,210.40/3,307.68 = 1,429.92/x
  3. Step 3: Cross multiply
    2,210.40x = 3,307.68 × 1,429.92
  4. Step 4: Simplify right side
    2,210.40x = 4,729,717.79
  5. Step 5: Solve for x
    x = 4,729,717.79/2,210.40
  6. Step 6: Final answer
    x = 2,139.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.