Home / 1,839.52-2,538.84-1,343.80

Finding the Fourth Proportional to 1,839.52, 2,538.84 and 1,343.80

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Solution

The fourth proportional to 1,839.52, 2,538.84 and 1,343.80 is: 1,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.52 : 2,538.84 = 1,343.80 : x
  2. Step 2: Convert to fraction form
    1,839.52/2,538.84 = 1,343.80/x
  3. Step 3: Cross multiply
    1,839.52x = 2,538.84 × 1,343.80
  4. Step 4: Simplify right side
    1,839.52x = 3,411,693.19
  5. Step 5: Solve for x
    x = 3,411,693.19/1,839.52
  6. Step 6: Final answer
    x = 1,854.66

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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.