Home / 1,805.42-2,491.38-1,008.74

Finding the Fourth Proportional to 1,805.42, 2,491.38 and 1,008.74

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Solution

The fourth proportional to 1,805.42, 2,491.38 and 1,008.74 is: 1,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.42 : 2,491.38 = 1,008.74 : x
  2. Step 2: Convert to fraction form
    1,805.42/2,491.38 = 1,008.74/x
  3. Step 3: Cross multiply
    1,805.42x = 2,491.38 × 1,008.74
  4. Step 4: Simplify right side
    1,805.42x = 2,513,154.66
  5. Step 5: Solve for x
    x = 2,513,154.66/1,805.42
  6. Step 6: Final answer
    x = 1,392.01

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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.