Home / 5,687.49-7,852.47-3,671.81

Finding the Fourth Proportional to 5,687.49, 7,852.47 and 3,671.81

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Solution

The fourth proportional to 5,687.49, 7,852.47 and 3,671.81 is: 5,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.49 : 7,852.47 = 3,671.81 : x
  2. Step 2: Convert to fraction form
    5,687.49/7,852.47 = 3,671.81/x
  3. Step 3: Cross multiply
    5,687.49x = 7,852.47 × 3,671.81
  4. Step 4: Simplify right side
    5,687.49x = 28,832,742.53
  5. Step 5: Solve for x
    x = 28,832,742.53/5,687.49
  6. Step 6: Final answer
    x = 5,069.50

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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.