Home / 5,239.10-7,858.65-1,343.51

Finding the Fourth Proportional to 5,239.10, 7,858.65 and 1,343.51

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Solution

The fourth proportional to 5,239.10, 7,858.65 and 1,343.51 is: 2,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.10 : 7,858.65 = 1,343.51 : x
  2. Step 2: Convert to fraction form
    5,239.10/7,858.65 = 1,343.51/x
  3. Step 3: Cross multiply
    5,239.10x = 7,858.65 × 1,343.51
  4. Step 4: Simplify right side
    5,239.10x = 10,558,147.07
  5. Step 5: Solve for x
    x = 10,558,147.07/5,239.10
  6. Step 6: Final answer
    x = 2,015.26

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1.5x scale

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.