Home / 1,370.26-2,055.95-492.87

Finding the Fourth Proportional to 1,370.26, 2,055.95 and 492.87

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Solution

The fourth proportional to 1,370.26, 2,055.95 and 492.87 is: 739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.26 : 2,055.95 = 492.87 : x
  2. Step 2: Convert to fraction form
    1,370.26/2,055.95 = 492.87/x
  3. Step 3: Cross multiply
    1,370.26x = 2,055.95 × 492.87
  4. Step 4: Simplify right side
    1,370.26x = 1,013,316.08
  5. Step 5: Solve for x
    x = 1,013,316.08/1,370.26
  6. Step 6: Final answer
    x = 739.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.