Home / 3,108,038.71-4,289,225.72-1,731,380.76

Finding the Fourth Proportional to 3,108,038.71, 4,289,225.72 and 1,731,380.76

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Solution

The fourth proportional to 3,108,038.71, 4,289,225.72 and 1,731,380.76 is: 2,389,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,038.71 : 4,289,225.72 = 1,731,380.76 : x
  2. Step 2: Convert to fraction form
    3,108,038.71/4,289,225.72 = 1,731,380.76/x
  3. Step 3: Cross multiply
    3,108,038.71x = 4,289,225.72 × 1,731,380.76
  4. Step 4: Simplify right side
    3,108,038.71x = 7,426,282,886,905.15
  5. Step 5: Solve for x
    x = 7,426,282,886,905.15/3,108,038.71
  6. Step 6: Final answer
    x = 2,389,379.15

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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.