Home / 3,112.40-4,669.95-1,573.40

Finding the Fourth Proportional to 3,112.40, 4,669.95 and 1,573.40

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Solution

The fourth proportional to 3,112.40, 4,669.95 and 1,573.40 is: 2,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.40 : 4,669.95 = 1,573.40 : x
  2. Step 2: Convert to fraction form
    3,112.40/4,669.95 = 1,573.40/x
  3. Step 3: Cross multiply
    3,112.40x = 4,669.95 × 1,573.40
  4. Step 4: Simplify right side
    3,112.40x = 7,347,699.33
  5. Step 5: Solve for x
    x = 7,347,699.33/3,112.40
  6. Step 6: Final answer
    x = 2,360.78

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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.