Home / 1,972.50-2,723.19-1,507.62

Finding the Fourth Proportional to 1,972.50, 2,723.19 and 1,507.62

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Solution

The fourth proportional to 1,972.50, 2,723.19 and 1,507.62 is: 2,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.50 : 2,723.19 = 1,507.62 : x
  2. Step 2: Convert to fraction form
    1,972.50/2,723.19 = 1,507.62/x
  3. Step 3: Cross multiply
    1,972.50x = 2,723.19 × 1,507.62
  4. Step 4: Simplify right side
    1,972.50x = 4,105,535.71
  5. Step 5: Solve for x
    x = 4,105,535.71/1,972.50
  6. Step 6: Final answer
    x = 2,081.39

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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.