Home / 1,931.89-2,898.01-545.24

Finding the Fourth Proportional to 1,931.89, 2,898.01 and 545.24

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Solution

The fourth proportional to 1,931.89, 2,898.01 and 545.24 is: 817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.89 : 2,898.01 = 545.24 : x
  2. Step 2: Convert to fraction form
    1,931.89/2,898.01 = 545.24/x
  3. Step 3: Cross multiply
    1,931.89x = 2,898.01 × 545.24
  4. Step 4: Simplify right side
    1,931.89x = 1,580,118.90
  5. Step 5: Solve for x
    x = 1,580,118.90/1,931.89
  6. Step 6: Final answer
    x = 817.91

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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.