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Finding the Fourth Proportional to 1,367.10, 1,888.32 and 1,013.70

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Solution

The fourth proportional to 1,367.10, 1,888.32 and 1,013.70 is: 1,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.10 : 1,888.32 = 1,013.70 : x
  2. Step 2: Convert to fraction form
    1,367.10/1,888.32 = 1,013.70/x
  3. Step 3: Cross multiply
    1,367.10x = 1,888.32 × 1,013.70
  4. Step 4: Simplify right side
    1,367.10x = 1,914,189.98
  5. Step 5: Solve for x
    x = 1,914,189.98/1,367.10
  6. Step 6: Final answer
    x = 1,400.18

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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.