Home / 1,031.48-1,423.28-589.32

Finding the Fourth Proportional to 1,031.48, 1,423.28 and 589.32

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Solution

The fourth proportional to 1,031.48, 1,423.28 and 589.32 is: 813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.48 : 1,423.28 = 589.32 : x
  2. Step 2: Convert to fraction form
    1,031.48/1,423.28 = 589.32/x
  3. Step 3: Cross multiply
    1,031.48x = 1,423.28 × 589.32
  4. Step 4: Simplify right side
    1,031.48x = 838,767.37
  5. Step 5: Solve for x
    x = 838,767.37/1,031.48
  6. Step 6: Final answer
    x = 813.17

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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.