Home / 1,839.40-2,538.57-1,053.58

Finding the Fourth Proportional to 1,839.40, 2,538.57 and 1,053.58

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Solution

The fourth proportional to 1,839.40, 2,538.57 and 1,053.58 is: 1,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.40 : 2,538.57 = 1,053.58 : x
  2. Step 2: Convert to fraction form
    1,839.40/2,538.57 = 1,053.58/x
  3. Step 3: Cross multiply
    1,839.40x = 2,538.57 × 1,053.58
  4. Step 4: Simplify right side
    1,839.40x = 2,674,586.58
  5. Step 5: Solve for x
    x = 2,674,586.58/1,839.40
  6. Step 6: Final answer
    x = 1,454.05

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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.