Home / 1,459.45-2,180.14-1,312.97

Finding the Fourth Proportional to 1,459.45, 2,180.14 and 1,312.97

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Solution

The fourth proportional to 1,459.45, 2,180.14 and 1,312.97 is: 1,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.45 : 2,180.14 = 1,312.97 : x
  2. Step 2: Convert to fraction form
    1,459.45/2,180.14 = 1,312.97/x
  3. Step 3: Cross multiply
    1,459.45x = 2,180.14 × 1,312.97
  4. Step 4: Simplify right side
    1,459.45x = 2,862,458.42
  5. Step 5: Solve for x
    x = 2,862,458.42/1,459.45
  6. Step 6: Final answer
    x = 1,961.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.