Home / 1,344.07-1,854.84-1,011.88

Finding the Fourth Proportional to 1,344.07, 1,854.84 and 1,011.88

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Solution

The fourth proportional to 1,344.07, 1,854.84 and 1,011.88 is: 1,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.07 : 1,854.84 = 1,011.88 : x
  2. Step 2: Convert to fraction form
    1,344.07/1,854.84 = 1,011.88/x
  3. Step 3: Cross multiply
    1,344.07x = 1,854.84 × 1,011.88
  4. Step 4: Simplify right side
    1,344.07x = 1,876,875.50
  5. Step 5: Solve for x
    x = 1,876,875.50/1,344.07
  6. Step 6: Final answer
    x = 1,396.41

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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.