Home / 1,937.40-2,905.14-620.98

Finding the Fourth Proportional to 1,937.40, 2,905.14 and 620.98

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Solution

The fourth proportional to 1,937.40, 2,905.14 and 620.98 is: 931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.40 : 2,905.14 = 620.98 : x
  2. Step 2: Convert to fraction form
    1,937.40/2,905.14 = 620.98/x
  3. Step 3: Cross multiply
    1,937.40x = 2,905.14 × 620.98
  4. Step 4: Simplify right side
    1,937.40x = 1,804,033.84
  5. Step 5: Solve for x
    x = 1,804,033.84/1,937.40
  6. Step 6: Final answer
    x = 931.16

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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.