Home / 1,850.65-2,551.51-1,320.14

Finding the Fourth Proportional to 1,850.65, 2,551.51 and 1,320.14

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Solution

The fourth proportional to 1,850.65, 2,551.51 and 1,320.14 is: 1,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.65 : 2,551.51 = 1,320.14 : x
  2. Step 2: Convert to fraction form
    1,850.65/2,551.51 = 1,320.14/x
  3. Step 3: Cross multiply
    1,850.65x = 2,551.51 × 1,320.14
  4. Step 4: Simplify right side
    1,850.65x = 3,368,350.41
  5. Step 5: Solve for x
    x = 3,368,350.41/1,850.65
  6. Step 6: Final answer
    x = 1,820.09

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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.