Home / 5,259.12-7,888.56-1,310.36

Finding the Fourth Proportional to 5,259.12, 7,888.56 and 1,310.36

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Solution

The fourth proportional to 5,259.12, 7,888.56 and 1,310.36 is: 1,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.12 : 7,888.56 = 1,310.36 : x
  2. Step 2: Convert to fraction form
    5,259.12/7,888.56 = 1,310.36/x
  3. Step 3: Cross multiply
    5,259.12x = 7,888.56 × 1,310.36
  4. Step 4: Simplify right side
    5,259.12x = 10,336,853.48
  5. Step 5: Solve for x
    x = 10,336,853.48/5,259.12
  6. Step 6: Final answer
    x = 1,965.51

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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.