Home / 1,429.16-2,135.72-1,350.18

Finding the Fourth Proportional to 1,429.16, 2,135.72 and 1,350.18

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Solution

The fourth proportional to 1,429.16, 2,135.72 and 1,350.18 is: 2,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.16 : 2,135.72 = 1,350.18 : x
  2. Step 2: Convert to fraction form
    1,429.16/2,135.72 = 1,350.18/x
  3. Step 3: Cross multiply
    1,429.16x = 2,135.72 × 1,350.18
  4. Step 4: Simplify right side
    1,429.16x = 2,883,609.81
  5. Step 5: Solve for x
    x = 2,883,609.81/1,429.16
  6. Step 6: Final answer
    x = 2,017.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.