Home / 2,059.29-2,841.80-1,115.08

Finding the Fourth Proportional to 2,059.29, 2,841.80 and 1,115.08

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Solution

The fourth proportional to 2,059.29, 2,841.80 and 1,115.08 is: 1,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059.29 : 2,841.80 = 1,115.08 : x
  2. Step 2: Convert to fraction form
    2,059.29/2,841.80 = 1,115.08/x
  3. Step 3: Cross multiply
    2,059.29x = 2,841.80 × 1,115.08
  4. Step 4: Simplify right side
    2,059.29x = 3,168,834.34
  5. Step 5: Solve for x
    x = 3,168,834.34/2,059.29
  6. Step 6: Final answer
    x = 1,538.80

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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.