Home / 1,031.70-1,423.75-612.26

Finding the Fourth Proportional to 1,031.70, 1,423.75 and 612.26

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Solution

The fourth proportional to 1,031.70, 1,423.75 and 612.26 is: 844.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.70 : 1,423.75 = 612.26 : x
  2. Step 2: Convert to fraction form
    1,031.70/1,423.75 = 612.26/x
  3. Step 3: Cross multiply
    1,031.70x = 1,423.75 × 612.26
  4. Step 4: Simplify right side
    1,031.70x = 871,696.53
  5. Step 5: Solve for x
    x = 871,696.53/1,031.70
  6. Step 6: Final answer
    x = 844.91

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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.