Home / 1,293.16-1,950.31-1,270.12

Finding the Fourth Proportional to 1,293.16, 1,950.31 and 1,270.12

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Solution

The fourth proportional to 1,293.16, 1,950.31 and 1,270.12 is: 1,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.16 : 1,950.31 = 1,270.12 : x
  2. Step 2: Convert to fraction form
    1,293.16/1,950.31 = 1,270.12/x
  3. Step 3: Cross multiply
    1,293.16x = 1,950.31 × 1,270.12
  4. Step 4: Simplify right side
    1,293.16x = 2,477,127.74
  5. Step 5: Solve for x
    x = 2,477,127.74/1,293.16
  6. Step 6: Final answer
    x = 1,915.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.