Home / 2,052.59-2,829.26-1,389.20

Finding the Fourth Proportional to 2,052.59, 2,829.26 and 1,389.20

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Solution

The fourth proportional to 2,052.59, 2,829.26 and 1,389.20 is: 1,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.59 : 2,829.26 = 1,389.20 : x
  2. Step 2: Convert to fraction form
    2,052.59/2,829.26 = 1,389.20/x
  3. Step 3: Cross multiply
    2,052.59x = 2,829.26 × 1,389.20
  4. Step 4: Simplify right side
    2,052.59x = 3,930,397.32
  5. Step 5: Solve for x
    x = 3,930,397.32/2,052.59
  6. Step 6: Final answer
    x = 1,914.85

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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.