Home / 1,693.80-2,337.38-1,031.56

Finding the Fourth Proportional to 1,693.80, 2,337.38 and 1,031.56

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Solution

The fourth proportional to 1,693.80, 2,337.38 and 1,031.56 is: 1,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.80 : 2,337.38 = 1,031.56 : x
  2. Step 2: Convert to fraction form
    1,693.80/2,337.38 = 1,031.56/x
  3. Step 3: Cross multiply
    1,693.80x = 2,337.38 × 1,031.56
  4. Step 4: Simplify right side
    1,693.80x = 2,411,147.71
  5. Step 5: Solve for x
    x = 2,411,147.71/1,693.80
  6. Step 6: Final answer
    x = 1,423.51

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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.