Home / 2,938.04-4,053.32-1,890.70

Finding the Fourth Proportional to 2,938.04, 4,053.32 and 1,890.70

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Solution

The fourth proportional to 2,938.04, 4,053.32 and 1,890.70 is: 2,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.04 : 4,053.32 = 1,890.70 : x
  2. Step 2: Convert to fraction form
    2,938.04/4,053.32 = 1,890.70/x
  3. Step 3: Cross multiply
    2,938.04x = 4,053.32 × 1,890.70
  4. Step 4: Simplify right side
    2,938.04x = 7,663,612.12
  5. Step 5: Solve for x
    x = 7,663,612.12/2,938.04
  6. Step 6: Final answer
    x = 2,608.41

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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.