Home / 1,465.43-2,020.85-1,343.88

Finding the Fourth Proportional to 1,465.43, 2,020.85 and 1,343.88

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Solution

The fourth proportional to 1,465.43, 2,020.85 and 1,343.88 is: 1,853.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.43 : 2,020.85 = 1,343.88 : x
  2. Step 2: Convert to fraction form
    1,465.43/2,020.85 = 1,343.88/x
  3. Step 3: Cross multiply
    1,465.43x = 2,020.85 × 1,343.88
  4. Step 4: Simplify right side
    1,465.43x = 2,715,779.90
  5. Step 5: Solve for x
    x = 2,715,779.90/1,465.43
  6. Step 6: Final answer
    x = 1,853.23

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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.