Home / 3,147.51-4,722.08-1,298.01

Finding the Fourth Proportional to 3,147.51, 4,722.08 and 1,298.01

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Solution

The fourth proportional to 3,147.51, 4,722.08 and 1,298.01 is: 1,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.51 : 4,722.08 = 1,298.01 : x
  2. Step 2: Convert to fraction form
    3,147.51/4,722.08 = 1,298.01/x
  3. Step 3: Cross multiply
    3,147.51x = 4,722.08 × 1,298.01
  4. Step 4: Simplify right side
    3,147.51x = 6,129,300.57
  5. Step 5: Solve for x
    x = 6,129,300.57/3,147.51
  6. Step 6: Final answer
    x = 1,947.35

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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.