Home / 2,938.70-4,056.09-1,888.94

Finding the Fourth Proportional to 2,938.70, 4,056.09 and 1,888.94

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Solution

The fourth proportional to 2,938.70, 4,056.09 and 1,888.94 is: 2,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.70 : 4,056.09 = 1,888.94 : x
  2. Step 2: Convert to fraction form
    2,938.70/4,056.09 = 1,888.94/x
  3. Step 3: Cross multiply
    2,938.70x = 4,056.09 × 1,888.94
  4. Step 4: Simplify right side
    2,938.70x = 7,661,710.64
  5. Step 5: Solve for x
    x = 7,661,710.64/2,938.70
  6. Step 6: Final answer
    x = 2,607.18

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1.5x scale

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.