Home / 1,745.40-2,614.98-921.83

Finding the Fourth Proportional to 1,745.40, 2,614.98 and 921.83

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Solution

The fourth proportional to 1,745.40, 2,614.98 and 921.83 is: 1,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.40 : 2,614.98 = 921.83 : x
  2. Step 2: Convert to fraction form
    1,745.40/2,614.98 = 921.83/x
  3. Step 3: Cross multiply
    1,745.40x = 2,614.98 × 921.83
  4. Step 4: Simplify right side
    1,745.40x = 2,410,572.10
  5. Step 5: Solve for x
    x = 2,410,572.10/1,745.40
  6. Step 6: Final answer
    x = 1,381.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.