Home / 1,260.21-1,890.62-610.19

Finding the Fourth Proportional to 1,260.21, 1,890.62 and 610.19

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Solution

The fourth proportional to 1,260.21, 1,890.62 and 610.19 is: 915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.21 : 1,890.62 = 610.19 : x
  2. Step 2: Convert to fraction form
    1,260.21/1,890.62 = 610.19/x
  3. Step 3: Cross multiply
    1,260.21x = 1,890.62 × 610.19
  4. Step 4: Simplify right side
    1,260.21x = 1,153,637.42
  5. Step 5: Solve for x
    x = 1,153,637.42/1,260.21
  6. Step 6: Final answer
    x = 915.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.