Home / 1,261.07-1,889.18-1,030.22

Finding the Fourth Proportional to 1,261.07, 1,889.18 and 1,030.22

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Solution

The fourth proportional to 1,261.07, 1,889.18 and 1,030.22 is: 1,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.07 : 1,889.18 = 1,030.22 : x
  2. Step 2: Convert to fraction form
    1,261.07/1,889.18 = 1,030.22/x
  3. Step 3: Cross multiply
    1,261.07x = 1,889.18 × 1,030.22
  4. Step 4: Simplify right side
    1,261.07x = 1,946,265.87
  5. Step 5: Solve for x
    x = 1,946,265.87/1,261.07
  6. Step 6: Final answer
    x = 1,543.34

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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.