Home / 1,931.80-2,898.06-1,007.86

Finding the Fourth Proportional to 1,931.80, 2,898.06 and 1,007.86

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Solution

The fourth proportional to 1,931.80, 2,898.06 and 1,007.86 is: 1,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.80 : 2,898.06 = 1,007.86 : x
  2. Step 2: Convert to fraction form
    1,931.80/2,898.06 = 1,007.86/x
  3. Step 3: Cross multiply
    1,931.80x = 2,898.06 × 1,007.86
  4. Step 4: Simplify right side
    1,931.80x = 2,920,838.75
  5. Step 5: Solve for x
    x = 2,920,838.75/1,931.80
  6. Step 6: Final answer
    x = 1,511.98

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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.