Home / 1,877.21-2,591.63-1,248.62

Finding the Fourth Proportional to 1,877.21, 2,591.63 and 1,248.62

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Solution

The fourth proportional to 1,877.21, 2,591.63 and 1,248.62 is: 1,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.21 : 2,591.63 = 1,248.62 : x
  2. Step 2: Convert to fraction form
    1,877.21/2,591.63 = 1,248.62/x
  3. Step 3: Cross multiply
    1,877.21x = 2,591.63 × 1,248.62
  4. Step 4: Simplify right side
    1,877.21x = 3,235,946.53
  5. Step 5: Solve for x
    x = 3,235,946.53/1,877.21
  6. Step 6: Final answer
    x = 1,723.81

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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.