Home / 1,931.94-2,897.85-545.37

Finding the Fourth Proportional to 1,931.94, 2,897.85 and 545.37

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Solution

The fourth proportional to 1,931.94, 2,897.85 and 545.37 is: 818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.94 : 2,897.85 = 545.37 : x
  2. Step 2: Convert to fraction form
    1,931.94/2,897.85 = 545.37/x
  3. Step 3: Cross multiply
    1,931.94x = 2,897.85 × 545.37
  4. Step 4: Simplify right side
    1,931.94x = 1,580,400.45
  5. Step 5: Solve for x
    x = 1,580,400.45/1,931.94
  6. Step 6: Final answer
    x = 818.04

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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.