Home / 1,972.03-2,725.00-1,688.39

Finding the Fourth Proportional to 1,972.03, 2,725.00 and 1,688.39

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Solution

The fourth proportional to 1,972.03, 2,725.00 and 1,688.39 is: 2,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.03 : 2,725.00 = 1,688.39 : x
  2. Step 2: Convert to fraction form
    1,972.03/2,725.00 = 1,688.39/x
  3. Step 3: Cross multiply
    1,972.03x = 2,725.00 × 1,688.39
  4. Step 4: Simplify right side
    1,972.03x = 4,600,875.20
  5. Step 5: Solve for x
    x = 4,600,875.20/1,972.03
  6. Step 6: Final answer
    x = 2,333.07

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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.