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Finding the Fourth Proportional to 1,859.88, 2,566.63 and 1,031.88

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Solution

The fourth proportional to 1,859.88, 2,566.63 and 1,031.88 is: 1,423.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.88 : 2,566.63 = 1,031.88 : x
  2. Step 2: Convert to fraction form
    1,859.88/2,566.63 = 1,031.88/x
  3. Step 3: Cross multiply
    1,859.88x = 2,566.63 × 1,031.88
  4. Step 4: Simplify right side
    1,859.88x = 2,648,454.16
  5. Step 5: Solve for x
    x = 2,648,454.16/1,859.88
  6. Step 6: Final answer
    x = 1,423.99

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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.