Home / 1,680.03-2,317.25-1,120.22

Finding the Fourth Proportional to 1,680.03, 2,317.25 and 1,120.22

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Solution

The fourth proportional to 1,680.03, 2,317.25 and 1,120.22 is: 1,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.03 : 2,317.25 = 1,120.22 : x
  2. Step 2: Convert to fraction form
    1,680.03/2,317.25 = 1,120.22/x
  3. Step 3: Cross multiply
    1,680.03x = 2,317.25 × 1,120.22
  4. Step 4: Simplify right side
    1,680.03x = 2,595,812.61
  5. Step 5: Solve for x
    x = 2,595,812.61/1,680.03
  6. Step 6: Final answer
    x = 1,545.10

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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.