Home / 1,839.47-2,538.80-1,053.56

Finding the Fourth Proportional to 1,839.47, 2,538.80 and 1,053.56

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Solution

The fourth proportional to 1,839.47, 2,538.80 and 1,053.56 is: 1,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.47 : 2,538.80 = 1,053.56 : x
  2. Step 2: Convert to fraction form
    1,839.47/2,538.80 = 1,053.56/x
  3. Step 3: Cross multiply
    1,839.47x = 2,538.80 × 1,053.56
  4. Step 4: Simplify right side
    1,839.47x = 2,674,760.17
  5. Step 5: Solve for x
    x = 2,674,760.17/1,839.47
  6. Step 6: Final answer
    x = 1,454.10

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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.