Home / 2,309.70-3,464.55-1,386.30

Finding the Fourth Proportional to 2,309.70, 3,464.55 and 1,386.30

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Solution

The fourth proportional to 2,309.70, 3,464.55 and 1,386.30 is: 2,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.70 : 3,464.55 = 1,386.30 : x
  2. Step 2: Convert to fraction form
    2,309.70/3,464.55 = 1,386.30/x
  3. Step 3: Cross multiply
    2,309.70x = 3,464.55 × 1,386.30
  4. Step 4: Simplify right side
    2,309.70x = 4,802,905.67
  5. Step 5: Solve for x
    x = 4,802,905.67/2,309.70
  6. Step 6: Final answer
    x = 2,079.45

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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.