Home / 1,495.85-2,065.47-1,338.20

Finding the Fourth Proportional to 1,495.85, 2,065.47 and 1,338.20

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Solution

The fourth proportional to 1,495.85, 2,065.47 and 1,338.20 is: 1,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.85 : 2,065.47 = 1,338.20 : x
  2. Step 2: Convert to fraction form
    1,495.85/2,065.47 = 1,338.20/x
  3. Step 3: Cross multiply
    1,495.85x = 2,065.47 × 1,338.20
  4. Step 4: Simplify right side
    1,495.85x = 2,764,001.63
  5. Step 5: Solve for x
    x = 2,764,001.63/1,495.85
  6. Step 6: Final answer
    x = 1,847.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.