Home / 1,031.50-1,423.53-589.54

Finding the Fourth Proportional to 1,031.50, 1,423.53 and 589.54

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Solution

The fourth proportional to 1,031.50, 1,423.53 and 589.54 is: 813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.50 : 1,423.53 = 589.54 : x
  2. Step 2: Convert to fraction form
    1,031.50/1,423.53 = 589.54/x
  3. Step 3: Cross multiply
    1,031.50x = 1,423.53 × 589.54
  4. Step 4: Simplify right side
    1,031.50x = 839,227.88
  5. Step 5: Solve for x
    x = 839,227.88/1,031.50
  6. Step 6: Final answer
    x = 813.60

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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.